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M A R C H / A P R I L 1 9 9 5 • V O L U M E 7 7 , N U M B E R 2 The FOMC in 1 9 9 3 and 1 9 9 4 : M o n e ta ry P o licy in T ran sitio n R e g u la tio n , M a rk e t Structure an d the B a n k F a ilu re s of the G re a t D e p ressio n U .S . O fficia l Fo recasts of G - 7 Eco n o m ies, 1 9 7 6 - 9 0 An O u tsid e r's G u id e to R e a l B u sin ess Cycle M o d elin g President Tho m as C. M e lz e r Director o f Research W illia m G . D e w ald A ssociate Director o f Research Cletu s C. Coughlin Research Coordinator and Review Editor W illia m T. G a v in Banking R. A lton G ilb e rt D a v id C. W h e elo ck International C h risto p h er J . N e e ly M ich a el R. P a k k o P a tric ia S . P o lla rd Macroeconom ics D o n ald S . A lle n R ich ard G . A n d erso n Ja m e s B. B u llard M ich a el J . D u e k e r Jo sep h A . R itter D a n ie l L. Thornton P e te r Yoo Regional M ich e lle A . C la rk K e v in L. K lie s e n A d am M . Z a r e ts k y Director o f Editorial Services D a n ie l P. B ren n an Managing Editor C h a rle s B. H enderson Graphic Designer B ria n D. E b ert Review is published six times per year by the Research Department o f the Federal Reserve Bank of St. Louis. Single-copy subscriptions are available free of charge. Send requests to: Federal Reserve Bank o f St. Louis, Pu blic Affairs D epartm ent, P.O. Box 4 4 2 , St. Louis, Missouri 63166-0442. The views expressed are those o f the individual authors and do not necessarily reflect official positions of the Federal Reserve Bank o f St. Louis, the Federal Reserve System , or the Board o f Governors. A rticles may be reprinted or reproduced if the source is credited. Please provide the Public Affairs Department with a copy o f the reprinted materials. REVIEW MARCH/APRIL 1995 rates during the Great Depression, providing new insight into the effects of governm ent policies and m arket structure on the perform ance o f the banking system. Volum e 7 7 , N um ber 2 39 U .S . O fficial Forecasts of G - 7 Eco nom ies, 1 9 7 6 - 9 0 3 The FOMC in 1 9 9 3 and 1 9 9 4 : M o n e tary P o licy in Transition M ichael R . P a k k o The Federal Reserve’s m onetary policy actions in 1994 might appear to represent an abrupt departure from those o f the previous year. Six highly publicized increases in short-term interest rates followed a period of relative stability in short-term rates in 1993. M ichael R. Pakko reviews the actions o f the the Federal O pen M arket Com m ittee (F O M C ), the Federal Reserve’s primary policym aking body, over the last two years. He views the FO M C ’s actions in the context o f the Fed’s support for a policy o f long-term price stability. M ichael U la n , W illia m G . D ew ald and Ja m e s B . B ullard Decisions concerning monetary and fiscal policy often depend in part on forecasts o f the future course o f real activity. But how accurate are those forecasts? Michael Ulan, W illiam G. Dewald and Jam es B. Bullard exam ine the relative accuracy o f forecasts for inflation and econom ic growth made by the U.S. governm ent for G -7 econom ies from 1 9 7 6 to 1990. They com pare the official forecasts to those made by other m ajor private and public groups, including the Organization for E conom ic Cooperation and Develop m ent (O E C D ) and the Federal Reserve. 49 An O u tsid er's G u id e to R e al B u sin ess Cycle M o d eling Jo sep h A . R itter 27 R eg u la tio n , M a rk e t Structure and the B an k F a ilu re s of the G re a t D ep ressio n D a vid C. W h eelo ck The bank and S & L debacle o f the 1980s focused attention on the possibility that government regulation and deposit insur ance can m ake depository institutions more prone to failure. Branch banking restrictions, for example, limit geographic diversification, leaving banks m ore vul nerable to localized econ om ic distress. David C. W heelock shows that state and federal banking policies contributed to interstate differences in bank failure During the last decade, real business cycle (R BC ) m odeling has w on a large market share in m acroeconom ic research. Though the econom ics are familiar, the com putational techniques still appear inaccessible to many econom ists. Joseph A. Ritter exposes som e o f the “Secrets of the RBC Temple” by describing— from an outsider’s vantage— the specification, calibration, solution and evaluation of one such model. REVIEW MARCH/APRIL 1995 M ich ael R. P a k k o is an econom ist a t th e Fed eral R e se rv e B a n k of St. Louis. K elly M. M orris provided research a ssistan ce. ■ The FOM C in 1993 and 1 9 9 4 : M o n e ta ry Policy in Transition ening o f consensus regarding the ultim ate goals and lim itations o f m onetary policy has continued to develop: E conom ists and Federal Reserve policym akers increasingly agree that price stability should be the over riding long-run concern o f the central bank, serving as a foundation for m aintaining econom ic growth. M onetary policy in 1993 and 1 9 9 4 might therefore be characterized as a period o f tran sition. Only in hindsight will we know the ultim ate outcom e o f this process. This article seeks to describe the nature o f the evolution to date. The next section describes the nature of the m ulti-stage policy process embodied in the fram ew ork o f interm ediate targeting. Subsequent sections are organized within the structure of this framework, focusing on the way in which the intermediate targeting strate gy has evolved during the past two years. In particular, the article exam ines the growing consensus for price stability as the ultim ate objective o f m onetary policy, describes the continuing de-emphasis of monetary aggregate targeting, and discusses som e issues relating to the characterization o f short-run policy in 1993 and 1994.' M ichael R. P akko n the surface, an analysis o f monetary policy in 1993 and 1 9 9 4 would seem to be a study in contrasts. During 1993, there were no changes in the policy directives of the Federal Open Market Committee (FO M C), and short-term interest rates rem ained steady throughout the year. In 1 9 9 4 , on the other hand, the FOM C announced six separate policy changes, each associated with highly publicized increases in short-term interest rates. From a broader perspective, monetary policy over the past two years could be characterized as reflecting an evolution o f the Federal Reserve’s instrum ent settings in response to strength ening econom ic growth. Policy remained deliberately stimulative during 1993, as m em bers o f the FO M C cautiously evaluated the robustness o f the ongoing econom ic recovery. A careful reading o f the policy record o f the FO M C and statem ents by its m em bers, how ever, reveals that a shift to a m ore-neutral policy stance was viewed as quite likely, though the tim ing o f the policy adjustm ents was in question. Beyond the short-term adjustments in the Federal Reserve’s policy settings during 1994, a num ber o f additional them es characterize m onetary policy in 1 9 9 3 and 1994. Over the course of these two years, the relationships of the m onetary aggregates to econom ic activity continued to depart from historical patterns. As a result, the strategy o f using m onetary aggregates as intermediate targets has becom e less im portant in the process o f form ulating policy and com m unicating its intent to the public. At the same time, however, a broad O A BRIEF DESCRIPTION OF THE INTERMEDIATE TARGETING STRATEGY Since at least the 1970s, the Federal Reserve’s m onetary policy has followed a m ulti-stage process, often referred to as the “Interm ediate Targeting” approach.2 The underlying presum ption o f this strategy is that some set of observable econom ic variables can serve as indicators or operational targets o f m onetary policy in a way that provides inform ation about the links betw een specific policy actions and the ultimate goals of policy. Typically, the interm ediate targeting strategy is presented in the econom ic literature as a sequence o f four levels o f policy. At the m ost basic level are the tools o f m onetary policy— the fundam ental instrum ents over which the Federal Reserve exerts direct control. 3 1 As a committee, the FOMC repre sents a range of individual view points. This article does not seek to characterize the views of any particular member, nor does it rep resent official positions of the Committee. Rather, it reflects one interpretation of recent events and decisions of the FOMC. 2 See Meulendyke (1990) for an account of the historic evolution of the Fed's operating procedures and intermediate targeting strategy. REVIEW MARCH/APRIL 3 Public Law 95-523, The Full Employment and Balanced Growth Act of 1978, Sec. 108. These tools include reserve requirem ents, the d iscount rate and open m arket operations. The next stage, often referred to as the operating instrum ents or proxim ate targets of policy, consists of measures w hich are directly affected by policy actions, but w hich are not under the direct control of the Federal Reserve. Included in this category are those variables that provide inform ation on the m arket for b ank reserves. The actions o f the Federal Reserve’s open m arket operations directly affect the supply o f reserves available to the banking system. Hence, readings on conditions in the reserve market can be drawn by observing either the quantity o f reserves (m easured by som e reserve aggregate or its growth rate) or the interest rate in the m arket for inter-bank reserve lending (the federal funds rate). O n the n ext level are the interm ediate targets o f policy. Theoretically, interm ediate targets should have two key attributes: They m ust be affected by the actions o f m onetary policy and have a predictable relationship to the ultim ate goals o f policy. An ideal interm e diate target would therefore serve to provide tim ely inform ation on the im plications of policy actions, allowing policymakers to make mid-course corrections in response to readings on the interm ediate target. As the m onetary policy process has evolved over recent decades, the interm ediate targeting strategy has devel oped around the notion o f using m onetary aggregates as intermediate targets. In fact, the use o f m onetary aggregates is reflected in the congressional mandate given to the Fed to guide the conduct o f policy, requiring that the Fed report “objectives and plans...with respect to the ranges o f growth or dim inution o f the m onetary and credit aggregates... ,”3 Finally, at the end o f the spectrum are the ultimate goals of monetary policy. The success or failure o f policy can only be meaningfully judged by its ability to achieve these goals. Yet the particular criteria for m aking such a ju d gm ent have not always been apparent. Congress has legislated a number of objectives for the Fed to pursue, which include econom ic growth, high em ploym ent, stable prices and low long-term interest rates. If the various objectives seem , at tim es, to be incom patible with one another, the legislation leaves unclear how conflicts should be resolved. 19 W ithin the interm ediate targeting frame w ork, the policymaking process can be thought o f as involving strategic and tactical decisions relating the settings at the various levels. As m andated by the Full Em ploym ent and Balanced Growth Act o f 1 9 7 8 (otherw ise know n as the H umphrey-Hawkins A c t), the FO M C evaluates its longer-term objectives twice per year, reporting to the Congress on its projections for econ om ic activity, and pre senting its intermediate targeting objectives in terms o f m onetary aggregate growth ranges. This bi-annual exercise can be thought o f as establishing the objectives and strategy o f policy. At each o f its eight m eetings per year, the FO M C m akes this strategy operational by providing a “directive” to the M anager of the System Open M arket A ccount at the Federal Reserve Bank o f New York. This directive specifies a short-term operating objective, cast qualitatively in term s o f a “degree o f pressure on [bank] reserve p o sition s.” The directive also suggests the Com m ittee’s inclination toward modification of policy during the inter meeting period. T he officials at the Open M arket Desk then carry out the tactical aspects o f the policy, arranging day-to-day purchases or sales o f Treasury securities to achieve the Com m ittee’s objectives for proxim ate targets (for example, the federal funds rate and reserve aggregate growth), in some cases adjusting the instrument settings in response to incoming information regarding the intermediate target variables. Figure 1 illustrates the process in a stepby-step m anner in a way w hich indicates the links am ong the various stages and suggests the type o f feedback rules with w hich policy is evaluated and modified. The strategic decisions of the FOM C are represented by the directional arrows running from ultim ate objectives back toward the tools o f policy, while the tactical decisions o f short-run policy im plem entation run in the opposite direction. As the structure of the econom y and econom ists’ understanding of its m echanism s change over tim e, the Federal Reserve’s approach to policym aking has evolved to meet new challenges. This evolution of the structure of policymaking is perhaps m ore significant than the day-to-day and m onth-to-m onth adjustm ents o f the Fed’s policy instrum ents, FEDERAL RESERVE B A N K O r ST. L O U I S 4 REVIEW MARCH/APRIL b u t is often overlooked in analyses o f m one tary policy. Subsequent sections o f this arti cle exam ine som e o f the emerging trends in the adaptation o f the FO M C ’s policym aking approach, organized within the context of the intermediate targeting framework. F ig u r e 1 The Fed's Interm ediate Targeting Strategy Strategy < ----------------- POLICY G O ALS: PRICE STABILITY AND ECONOMIC GROWTH ----------- ► Tactics By tradition and legislation, the Federal Reserve is charged with considering a number o f objectives in the form ulation o f m onetary policy. For exam ple, the Federal Reserve Act as amended in 197 7 specifies that the Fed is to “prom ote effectively the goals o f maxim um em ploym ent, stable prices, and m oderate long-term interest rates.”4 Federal Reserve policym akers also seek to m aintain “orderly” financial m arkets, w hich operationally has meant an apparent tendency to smooth interest rate changes. The existence o f m ultiple goals raises the possibility that two or m ore objectives may com e into conflict. A lthough congres sional legislation specifies a num ber o f goals, it gives no clear guidance how potential con flict among objectives should be resolved. Flistorically, Federal Reserve policym akers have tended not to specify the relationships among the goals explicitly or how potential conflicts are to be resolved, preferring instead to defer to the need to retain flexibility in the im plem entation o f policy. As M aisel (1 9 7 3 ) noted: “Frequently, m em bers o f the FO M C argued over the m erits o f a policy w ithout ever having arrived at a m eeting o f the minds as to what m onetary policy was and how it worked. These problem s were, and still are, neither recognized nor clarified.”5 Recently, however, public statem ents by FO M C m em bers have tended to emphasize the long-run consistency betw een the ob jec tives of “price stability” and econom ic growth, recognizing that the trade-off w hich was once com monly thought to exist between inflation and real econom ic growth does not exist in the long ra n (see the shaded insert titled, “Statem ents by FO M C M em bers on Price Stability”). This view has been shaped both by theoretical advances in m acroeco 1995 nom ics and the experience o f the 1 9 7 0 s in particular. As Federal Reserve Chairm an Alan Greenspan has noted: “...the experience o f the past three decades has dem onstrated that what appears as a tradeoff betw een unem ploym ent and inflation is quite ephem eral and m is leading. Over the longer run, no such tradeoff is evident...Experience both here and abroad suggests that lower levels of inflation are conducive to the achievement of greater productivity and efficiency and, therefore, higher standards o f living.”6 From this perspective, the trade-offs among the various goals o f m onetary policy appear less in conflict w ith one another than they are often perceived to be: In the long ra n , the pursuit o f price stability is consistent with— perhaps even necessary for— the mainte nance of econom ic growth and low long-term interest rates. This view also stands in contrast to many characterizations o f recent m onetary policy by the media, w hich suggest that the Fed’s policy is to deliberately impede econom ic growth in order to subdue inflation.7 Never theless, there is often pressure from outside the Federal Reserve to pursue policies w hich prom ise to provide short-term gains in ou t put and em ploym ent, but at the expense of potential inflationary consequences in the longer term .8 Despite the general support for price stability, such broad statem ents o f purpose rem ain som ewhat vague as operational objec tives. As Chairman Greenspan described the issue: “...price stability does n ot require that measured inflation literally be zero but rather is achieved when inflation is low enough that changes in the general price level are insignif- 5 4 Federal Reserve Reform Act, Section 2A, November 1 6 ,1 97 7 (91 Slot. 1387). 5 Maisel (1973), p. 78. ‘ Statement before the Joint Economic Committee, U.S. Congress, January 31, 1994. Federal Reserve Bulletin (March 1994, p. 232). 7 For a critique of this view, see Jordan (1994). ! See, for example, Papadimitriou and Wroy (1994). REVIEW STATEMENTS BY FOMC MEMBERS ON PRICE STABILITY W h ile their views often differ in em phasis and w ith regard to specific policy recom m en dations, m em bers o f the FO M C display a broad unanim ity o f opinion regarding the u lti mate long-run objectives o f m onetary policy: “...the Federal Reserve seeks to foster m axim um sustainable econom ic growth and rising standards o f living. And in that endeavor, the m ost productive function the central bank can perform is to achieve and m aintain price stability.” “I believe that the prim ary goal o f policy is to prom ote econom ic growth and em ploym ent and that the Federal reserve can best pursue this goal by fostering a stable aggregate price level over tim e.” - J . Alfred Broaddus, Jr., President, Federal Reserve Bank of Richmond - Alan Greenspan, Chairman, Federal Reserve Board “Inflation has to, by default, take pri macy because that is what we can control in the long ru n .” “W e now know that m axim um sustainable econom ic growth is achieved w hen changes in the price level cease to be a factor in econom ic d ecision-m aking.” - Alan Blinder, Vice Chairman, Federal Reserve Board - Thomas C. Melzer, President, Federal Reserve Bank of St. Louis “T he Federal Reserve is com m itted to keeping inflation down n ot for its own sake, b u t because it is im portant for long term econom ic growth for this country.” “...in the long run the m ost significant contribution m onetary policy can m ake to achieving m axim um sustainable growth - Lawrence B. Lindsey, member, Federal Reserve Board in real output is to foster price stability.” - Gary H. Stern, President, Federal Reserve Bank of Minneapolis “I think in general we’ve made good progress on price stability but it’s not som ething where you can say, ‘W e’ve won the battle and we can go hom e.’ It’s som e thing we always have to pay attention to .” “1 think we all agree that the goal o f m onetary policy is to prom ote m axim um sustainable growth over tim e...Bu t ju s t as im portant, and consistent w ith this goal, the Federal Reserve m ust w ork toward ensuring an environm ent of price stability.” - Susan M. Phillips, member, Federal Reserve Board “Keeping inflation low is a necessary ingredient for m axim izing sustainable econom ic and jo b grow th.” - Thomas M. Hoenig, President, Federal Reserve Bank of Kansas City - Edward G. Boehne, President, Federal Reserve Bank of Philadelphia “...in the long run the m ost significant contribution we can m ake to econom ic growth is by providing a low -inflation environm ent, and we have made progress in that area...” “W hat m onetary policy can do to prom ote long-run econom ic efficiency is to stabilize the aggregate price level and to create a clim ate o f confidence about the ou tlook for price stability.” - Robert T. Parry, President, Federal Reserve Bank of San Francisco -Je r ry L. Jordan, President, Federal Reserve Bank of Cleveland 6 T a b le 1 FOMC Central Tendency Projections Variable 1993 1994 1995 Feb. 93 N om inal GDP Real GDP CPI Un em p lo ym en t rate 514 — 6 3 -3 /4 6 /! 4 - 7 N om inal G D P Real G D P CPI Un em p lo ym en t rate July 93 Feb. 94 July 94 5 .0 3.1 2 .7 6 .5 5 - 5 /< 3 2 / 4- 2 34 / 3 - 3/ 4 6/4 5 - 6/2 2 ' A - 3/4 3 - /3 2 6 / 2- 6 / , Actual 5/ 2 -6 5/ 2 -6 3 -3 /4 About 3 6 / 2- 6 / 4 3 -3 /4 234 - 3 / 6 - 6/4 6 .5 4.1 2 .7 5 .6 5 - 5 / 2 / , -2 34 / 2 / 4 - 3/2 6 - 6/4 N om inal G D P Real G D P CPI U n em p lo ym en t rate Note: Unemployment rote refers to the overage level for the fourth quarter. All other dato represent fourth quorter-to-fourth quarter percentage changes. econom ic outcom es over this tim e horizon, the distinction betw een Com m ittee mem bers’ expectations and objectives are som ewhat unclear in these projections. The notion o f price stability as the ulti mate goal of m onetary policy and the recog nition o f the im portance o f long-term plan ning horizons have led som e to advocate the introduction of som e form o f explicit longrange price level or inflation target to the m onetary policy process.1 R ecent policy 0 reform s in New Zealand, Canada and Great Britain have moved in this direction, w ith apparent success to date. Advocates o f such a policy for the U nited States emphasize the im portance o f credibility in m onetary policy; that is, individuals and businesses are more likely to have faith in the Fed’s ability to m aintain price stability when there is a clear com m itm ent to a specific objective." Indeed, the im portance o f inflation expectations and the role o f Fed credibility in the form ation o f those expectations are issues w hich have been emphasized in recent statem ents by Chairm an Greenspan: “The effects o f policy on the econom y critically depend on how m arket participants react to Federal Reserve actions as well as on expec tations o f our future actions.”1 As an example 2 of the im portance o f expectations, Greenspan has suggested that a significant feature o f the econom y’s slow em ergence from the 19 9 0 -9 1 icant for econom ic and financial planning.”’ However, many questions rem ain unre solved: W hat price index should be used for measurem ent? W hat rate o f inflation corre sponds to “price stability”? Should the Fed pursue objectives stated in terms o f price levels or inflation rates? W hat operating procedures should be used to achieve the objective? W hat is the relevant tim e frame for achieving and m aintaining price stability? The em phasis on the benefits o f longrun price stability suggests the potential effi cacy o f establishing long-run objectives for m onetary policy. Under the present stru c ture of policy form ulation, the only quantita tive m ethod o f com m unicating long-term expectations regarding the objectives o f poli cy is the bi-annual econom ic projections of the Com m ittee, w hich are presented by the Chairm an o f the Board o f G overnors in each o f the Humphrey-Hawkins reports to Congress. Table 1 reports the central ten dency m easures o f these projections reported in 1993 and 1994. Note that these projec tions extend only 12 to 18 m onths. More importantly, it is unclear how the forecasts subm itted by FO M C m em bers incorporate anticipated m onetary policy actions. Tinsley and others (1 9 8 1 ) refer to the nature o f these projections as “econom ic w eather forecasts with provisions for cloudseeding.” To the extent that the Fed’s policy actions effect 7 9 Statement before the Committee on Banking, Mousing, and Urban Affairs, U.S. Senate, February 19, 1993. Federal Reserve Bulletin (April 1993, p. 300). 10 See, for example, 1994 Annual Report, Federal Reserve Bonk of St. Louis. For an example of a specific operational plan for achieving price stability, see Gavin and Stockman (1992). 1 See, for example, Angell (1994) 1 ond Jordan (1993). 1 Statement before the Committee 2 on Banking, Housing, and Urban Affairs, U.S. Senate, February 19, 1993. federal Reserve Bulletin (April 1993, p. 293). REVIEW MARCH/APRIL one o f the crucial issues in m onetary policy in 1995 and beyond. M onetary A ggregate O bjectives Ranges (percentage growth rates) Date of Meeting Feb . 2 - 3 , 1 9 9 3 Ju ly 6 - 7 , 1 9 9 3 Feb . 2 2 , 1 9 9 4 Ju ly 2 0 , 1 9 9 4 13 Statement before the Committee on Bonking, Housing, and Urban Affairs, U.S. Senate, February 19, 1993. Federal Reserve Bulletin (April 1993, p. 293). 14 Statement before the Joint Economic Committee, U.S. House of Representatives (December 7, 1994). 15 During the first half of 1993, both M2 and M3 were running below the growth ranges originally speci fied by the Committee in February 1993. Reflecting uncertainty regarding the factors distorting the aggregates' growth rates, the ranges were lowered in July of 1993 (see Table 2). 16 See Poole (1994). 17 Moisei (1973) provides an insid er's view of this period of monetary policymaking. Target Period M2 1 9 9 2 :Q 4 — 1 9 2 3to 64 9 :Q M3 1995 INTERMEDIATE TARGETS: THE DE-EM PHASIS OP M 2 Debt '/2 to 4 '/2 4 '/ jt o 8 '/2 0 to 4 0 to 4 4 to 8 4 to 8 Perhaps the m ost fundam ental m odifica tion to the interm ediate targeting strategy witnessed over the past two years has been the 1 9 9 3 :Q 4 — 1 9 9 4 :Q 4 1 to 5 0 to 4 8 4 to continuing de-emphasis of the monetary targets as operational objectives. This is n ot to say 1 9 9 3 :Q 4 — 1 9 1 4 :Q54 9 to 0 to 4 4 to 8 that the aggregates are now disregarded alto 1 9 9 4 : Q 4 - 1 9 9 5 : Q 4 1 to 5 0 to 4 3 to 7 gether as indicators o f policy, b u t rather that recession was a need to restructure balance the prom inence they once held in discussions sheets, w h ich in turn was partly attributable o f policy has dim inished significantly. to inflation expectations: “...households and Table 2 reports the ranges specified by businesses apparently were skeptical that infla the FO M C for m oney and credit growth in tion would continue to decline and...may even 1 9 9 3 and 1 9 9 4 , and Figure 2 displays actual have expected it to rebound. As a consequence, m easures o f the m onetary aggregates relative many may have shaped their investm ent deci to these target ranges. Despite the lessened sions im portantly based on expectations of em phasis on attaining m onetary aggregate inflation-induced appreciation of asset prices targets as a policy objective (discussed further rather than on m ore fundam ental econom ic below ), the aggregates finished both years considerations.” 1 3 w ithin the specified growth ranges.1 5 The idea that m onetary policy should There is good reason to consider measures be charged w ith a single specific objective o f the m oney stock as im portant indicators o f price stability is not new. In 1 9 8 9 , Repre o f the thrust of m onetary policy. B oth theo sentative Steven Neal, D .-N orth Carolina, retically and empirically, the growth rate of introduced legislation w hich would have money and the rate of inflation are known to mandated such a framework. At the time, be closely related— at least over long periods. the Neal proposal was m et by favorable reac This relationship can be clearly observed in tions from Chairm an G reenspan and other com parisons o f inflation rates and money FO M C mem bers. More recently, Senator growth rates across countries, and considera Connie M ack, R .-Florida, has indicated his tion o f trends w ithin a single country over inten tion to introduce legislation in 1 9 9 5 for extended periods o f tim e.1 Over shorter time 6 the purpose o f modifying the Humphreyhorizons, however, the relationship is m uch Hawkins fram ew ork to elim inate references less apparent. T his is at least partly attribut to em ploym ent and interest rate objectives, able to the fact that m easured m onetary and to direct the Federal Reserve to lim it CPI aggregates are, at best, an approxim ation of inflation to less than 2 percent per year. econom ists’ conceptual notion o f “money.” Chairm an Greenspan has responded that he From m onth to m onth or quarter to quarter, favors such legislation in principle, but has substitution am ong various assets often dem urred on the issue o f a num erical o b jec m akes the growth rates o f the aggregates dif tive: “I have always argued that it would be ficult to interpret. Moreover, the rapid pace useful for us...to be required to focus crucially, o f financial innovation in recent years has if not solely, on domestic price inflation... [but] changed the nature o f the aggregates, further I would be m ore inclined to go to a more com plicating their interpretation. T he FO M C began to consider m onetary general type o f requirem ent for the central b a n k ...1 4 aggregates as operational objectives o f policy T he issue o f w hether to charge the explicitly in its directives in 1 9 7 0 .1 The status 7 Federal Reserve with a specific long-run of the aggregates took on m ore prom inence price stability mandate is likely to rem ain as over the years, and their role as interm ediate 1 9 9 2 :Q 4 — 1 9 9 3 :Q 4 1 to 5 1 9 9 3 :Q 4 — 1 9 9 4 :Q 4 1 to 5 NK OF ST. LOUIS 8 REVIEW MARCH/APRIL 1995 F ig u r e 2 M o n etary A g g reg a te s M l A g g reg ate M 2 A g g re g a te M 3 A g g re g ate D om estic N o n fin a n cia l Debt 13500 13000 11000 m onetary policy. Som e econom ists, em pha sizing the transactions role o f money, have typically favored narrower m easures such as M l. O thers, who stress the additional role of money as a store of value, suggest that broader aggregates like M 2 are m ore appropriate as indicators o f available purchasing power. W hile such theoretical considerations are certainly considered by policym akers, the FO M C ’s choice o f interm ediate target has typically appeared to be guided m ore by observations on the consistency and stability o f relationships betw een the aggregates and econom ic activity. In the absence o f reliable inform ation from M l after the m id -1980s, the broader aggregate M 2 naturally took on greater prom inence. In the early 19 9 0 s, however, the relationship betw een M 2 and overall econom ic activity also began to show signs o f deterioration. O ne way o f sum m arizing this relationship is to consider the velocity of M2— the ratio o f the total dollar value o f GDP to M 2. Figure 3 illustrates the historical behavior o f M 2 velocity. U ntil recently, this measure has show n little tendency to display targets was w ritten into the congressional mandates beginning w ith House C oncurrent R esolution 133 in 1975 and later in the 1978 H umphrey-Hawkins legislation. The use of m onetary aggregates as interm ediate targets in the United States reached a high point during the period from O ctober 1979 until the autum n o f 1982 , when the FO M C placed greater emphasis on m onetary growth in an effort to establish a credible policy of halting and reversing the rising trend of inflation. W hile both M l and M 2 were cited as opera tional objectives, primary attention at the tim e was focused on the narrow aggregate M l. By the m id -1980s, however, the rela tionship o f M l to overall econom ic activity had apparently changed so m uch that it seemed less desirable as an interm ediate tar get. In fact, reference to M l was removed from the FO M C ’s policy directives starting w ith the O ctober 1 9 8 2 m eeting, and the Com m ittee stopped reporting annual growth objectives for M l in 1 9 8 7 .1 8 T h e issue o f w hich m onetary aggregate is appropriate for guiding policy has a long and controversial history in discussions of 9 18 A discussion of the problems encountered with M l is beyond the scope of this article. Some of these issues ore explored in Stone and Thornton (1987). F ig u r e 3 velocity: They pointed out that the use of the three-m onth T-bill yield to m easure opportunity cost may n o t fully capture the range o f alternative yields relevant to the public’s demand for M 2 ." E xperim enting with a broader range o f opportunity cost measures, Feinm an and Porter found that using loan rates and longer-term Treasury yields helped to explain the behavior o f M 2 velocity in the 1 9 8 0 s and 1990s. This expla nation seem ed particularly relevant given the steepness o f the yield curve that prevailed in 1992: If longer-term assets were, in fact, good substitutes for the com ponents o f M 2, then the relatively high rates o f return on long-term instrum ents may well have been attracting funds out o f M 2, depressing its growth rate. Although this insight helped to account for unusually slow M 2 growth to som e extent, its explanatory power was apparently insufficient to sustain FO M C m em bers’ con fidence in M 2 as an interm ediate target beyond m id -1993. In discussing the de em phasis o f M 2 at the Humphrey-Hawkins hearings in Ju ly 1 9 9 3 , Chairm an Greenspan described how quickly this confidence had evaporated: “T he evidence as of, say the end o f last year, would suggest that it was proba bly correct to assume that M 2 was becom ing increasingly faulty Six m onths later, it’s becom ing extraordinarily persuasive.”” As further observations becam e avail able, the yield curve explanation becam e even m ore untenable as a significant expla nation for the rapid growth o f M 2 velocity. In particular, the sharp flattening o f the yield curve in 1 9 9 4 appeared to be associated w ith little if any slowdown in velocity growth. A lthough the slow growth o f M 2 in recent years is n ot fully explicable, at least two additional transitory special factors have contributed to the weakness. First, the large decline in interest rates during 1991 and 1 9 9 2 stim ulated extensive refinancing of long-term debt, particularly m ortgages. In the refinancing process, m ortgage servicers tended to hold funds in highly liquid deposits prior to transferring the balances to investors holding the underlying mortgagebacked securities. The large volum e o f funds moving through liquid deposit accounts V elo city a n d O p p ortunity Cost of M 2 M2 Velocity (ratio) M2 Opportunity Cost (percent) 6 4 2 0 19 The FOMC's discussion of the Feinman and Porter study was reported by the American Banker (see Cummins, 1992). 20 Statement before the Committee on Banking, Mousing, and Urban Affairs, U.S. Senate (July 22, 1993, p. 34). any trend rate o f growth, fluctuating around a constan t value o f approxim ately 1.65. As show n in Figure 3, m uch o f the vari ability o f M 2 velocity around its trend can be related to a m easure o f opportunity cost. The opportunity cost m easure illustrated in Figure 3 is defined as the difference betw een the interest rate on three-m onth Treasury bills (considered to be an alternative to hold ing M 2 assets) and a weighted average o f the rates o f return on assets included in M 2. W hen the opportunity cost o f holding M 2 is high (th at is, when the return on M 2-type assets is relatively low ), the growth rate of M 2 tends to be lower than it otherwise would be as people take advantage o f other, higher-yielding alternatives. H ence, the velocity of M 2 tends to rise above its trend. It is clear from Figure 3 that this rela tionship has recently departed from its typi cal historical pattern. W h ile the measured opportunity cost o f holding M 2 has been quite low during the early 1 9 9 0 s, M 2 growth has been uncharacteristically slow so that velocity has risen far above its average level. As the breakdow n o f this relationship becam e apparent in the early 1990s, Federal Reserve officials searched for explanations. In a staff study presented to the FO M C at the m eeting o f Novem ber 17, 1 9 9 2 , Feinm an and Porter (1 9 9 2 ) suggested one possible explanation w hich seem ed to account for som e o f the anom alous behavior o f M2 10 REVIEW MARCH/APRIL associated with this activity had the effect of boosting the measured growth rate o f the m onetary aggregates. As this refinancing activity declined in 1 9 9 4 , the associated run off o f liquid funds tended to dampen m one tary growth rates.2 This factor is clearly 1 temporary in nature, and it is likely that inter-aggregate flows associated with refi nancing activity had subsided by m id -1994. A second possible factor contributing to uncharacteristically slow M 2 growth is the recent surge in popularity o f bond and equity mutual funds. Figure 4 illustrates net assets of these instrum ents over the past several years. A significant portion o f these funds appeared to be flowing from tim e deposits and m oney m arket m utual funds, w hich are b oth included in M 2. Figure 4 illustrates the correspondence betw een the recent period of sharply rising M 2 velocity and the period of dram atic m utual fund growth. To the extent that portfolio shifts from M 2 assets into m utual funds has accounted for the anom alous behavior o f M 2 growth, an aggregate that includes m utual funds along w ith M 2 assets (called M 2 Plus) could potentially per form better than the conventional M 2 defini tion. Researchers at the Board o f Governors investigated this possibility, and the m atter came up for d iscussion at the FO M C m eet ing o f Ju ly 6 -7 , 199 3 . This research suggest ed that although the velocity o f M 2 Plus was som ewhat less anom alous than that o f M 2, the inclusion o f mutual funds did n ot fully elim inate the recent velocity puzzle.2 2 Accordingly, the m inutes o f the FO M C report that “after exam ining the properties of this measure and reviewing its past behavior in relation to key indicators o f econom ic per form ance, the m em bers concluded that it would not enhance the form ulation or im plem entation o f m onetary policy, at least at this p o in t.”2 3 Subsequent experience appeared to have borne out the C om m ittee’s assessm ent. As illustrated in Figure 4 , flows into m utual funds have slowed dram atically during 1 9 9 4 as interest rates have risen. M 2 growth, however, has remained uncharacteristically slow, w ith its velocity reaching record highs toward the end o f the year. In recognition o f these unusual factors 1995 F ig u r e 4 M 2 V elo city an d N et A ssets of Bend an d Equity M utual Funds M2 Velodty (ratio) Mutual Fund Assets (bfliions of dollars) r 1600 - 1400 - - 1200 1000 800 600 I- 400 200 affecting the growth rate o f the m onetary aggregates, the FO M C lowered its growth objectives for M 2 and M 3 at its July, 1993 m eeting (see Table 2 ). In his subsequent report to Congress, Chairm an Greenspan indicated that the Com m ittee had also decid ed to de-em phasize its consideration o f M 2 as a policy target: “At least for the time being, M 2 has been downgraded as a reliable indicator o f financial conditions in the econ omy, and no single variable has yet been identified to take its place.”2 4 T he lack o f any particular m easure to fill the role previously played by m onetary aggregates has fundam entally altered the ostensible control strategy o f the interm edi ate targeting approach, w ith m em bers o f the Com m ittee left to r e ly on “ongoing assess m ents o f the totality o f incom ing inform a tion and appraisals o f the probable outcom es and risks associated w ith alternative poli cies.”2 M ore importantly, the ability o f poli 5 cym akers to com m unicate long-term policy intentions is greatly dim inished by the absence o f meaningful m onetary targets. A lthough m onetary targets have never been the sole guide for FO M C policy decisions, they did provide a useful fram ew ork for assessing short-run policy adjustm ents in a con text o f longer-run objectives. In the absence o f interm ediate targets, public atten tion has becom e m ore focused on short-term adjustm ent in the federal funds rate and dis cou nt rate. F E D E R A L RESERVE B A N K O F ST. L O U I S 11 2 See Anderson (1993). 1 22 See Collins ond Edwards (1994) and Orphanides, Reid and Small (1994). 23 Minutes of the Federal Open Market Committee Meeting of July 6-7, 1993. Federal Reserve Bulletin (October 1993, pp. 944-5). 21 Statement before the Subcommittee on Economic Growth and Credit Formation of the Committee on Banking, Finance and Urban Affairs, U.S. House of Representatives, July 2 0 ,1 9 9 3 . Federal Reserve Bulletin (September 1993, p. 852). 25 Statement by Alan Greenspan, Chairman, Federal Reserve Board, before the Subcommittee on Economic Growth and Credit Formation of the Committee on Bonking, Finance and Urban Affairs, U.S. House of Representatives, February 22, 1994. Federal Reserve Bulletin (April 1994, p. 304). T a b le 3 FOMC D irectives and M e asu res of M o n etary P olicy Stance Intermeeting Stance Toward M eeting D irective for R e se rv e Pressure G reater R estraint Le sse r Restraint Result from Change in Reserve Pressure. Fund s rate "targ e t" * D ate of C hang e Discount rate 1 9 9 3 Feb. 2 -3 m ain tain would would Mar. 2 3 m ain tain would would N /A 3 .0 0 N /A 3 .0 0 3 .0 0 3 .0 0 M ay 18 m ain tain m ight would N /A 3 J u l. 6-7 m ain tain m ight would N /A 3 m m ight ight Aug. 17 m ain tain Sep . 21 m ain tain m ight m ight N /A0 3 .0 3 .0 0 Nov. 16 m ain tain m ight m ight N /A0 3 .0 3 .0 0 m ain tain m ight m ight N /A0 3 .0 3 .0 0 D ec. 21 N /A 3 .0 0 3 .0 0 1 9 9 4 m ight m ight Feb. 3 -4 in cre ase slightly M ar. 22 in crease slightly m ight m ight 2 /4/94 m ight m ight 3 .2 5 3 / 2 2 /39.540 & 4 /18/94 M ay 17 in cre ase som ew hat Ju l. 5-6 m ain tain m ight 3 .7 5 would in crease so m ew h at would would 8/16/94 m ain tain m ight w ould N /A 5 4 .7 Dec. 2 0 w would ould m ain tain m ight 11/15/94 would 3 .5 0 N /A Sep. 27 in crease sig n ifican tly 3 .0 0 5 / 1 7 / 954 4 .2 A ug . 1 6 Nov. 15 3 .0 0 3 .0 0 4 .2 5 3 .5 0 4 .7 5 4 .0 0 5 .5 0 4 .7 5 N /A 0 5 .5 4 .7 5 * F e d e ra l fu n ds rate expected to be consistent with desired re se rv e restrain t. INSTRUMENT SETTINGS: IN SEARCH OF NEUTRALITY occasions, w ith the cum ulative effect of these actions reflected in an increase o f around 2 lh percentage points in the federal funds rate. Table 3 sum m arizes the actions taken by the FOM C at its meetings over the 1993-94 period. The appendix to this article sum m arizes the discussions that took place at those meetings. As is always the case w hen the FO M C ’s policy decisions are associated with interest rate increases, the Fed has been criticized in 1994 for hampering the econom y by pursuing overly “tight” m onetary policy. However, it is not clear that the policy moves taken in 1 9 9 4 should be considered particularly restrictive. Rather, the stated intentions of the Committee have been to move the stance o f policy from one of “accom m odation” to “a m ore neutral posture.” The steady policy pursued in 1993 was recognized by Com m ittee m em bers as being purposefully accom m odative. Lacking any Although developments in the evolution of the FO M C’s policy framework described above are significant, it is the m eeting-to-m eeting actions o f the Com m ittee and their effect on short-term interest rates w hich have attracted the attention of the public. From 1989 through 19 9 2 , the FO M C endorsed a policy o f easing reserve restraint, perm itting rapid growth o f bank reserves and facilitating 25 distinct declines in short-term interest rates, cu m u lating in nearly a 7 percentage point drop from previous peaks. During 1993, the Com m ittee called for “m aintaining the existing degree of pressure on reserve positions” at each of its m eetings, and the federal funds rate remained fairly constant at around 3 percent. In 1 9 9 4 , on the other hand, the Fed announced actions to increase reserve pressure on six separate 12 REVIEW MARCH/APRIL 1995 MEMBERS OF THE FOMC IN 1 9 9 3 AND 1 9 9 4 At any given time, the Federal O pen M arket Com m ittee consists o f 12 voting mem bers. The Com m ittee includes all seven m em bers o f the Board o f G overnors o f the Federal Reserve System, as well as five o f the 12 presidents o f the regional Federal Reserve banks. Reflecting the im portance o f the Federal Reserve Bank o f New York in policy im plem enta tion, the president o f that Reserve Bank is always a voting m em ber and is, in fact, elected as Vice Chairm an o f the Com m ittee (the Chairm an o f the Board o f G overnors is elected as Chairm an o f the FO M C ). The rem aining four positions rotate am ong the presidents o f the other 11 Federal Reserve banks. Although only a lim ited num ber o f Federal Reserve Bank presidents are voting m em bers o f the Com m ittee, all 12 attend the m eetings and participate in the discussions. In addition to the usual rotation o f Federal Reserve Bank presidents as voting m em bers o f the Com m ittee, the Com m ittee’s com position in 1 9 9 3 and 1 9 9 4 changed due to changes in the m em bership o f the Board of G overnors and the presidency o f the New York Fed. Listed below are the voting m em bers o f the FO M C in 1993 and 1994. 1993 1994 Alan Greenspan C h airm an , B oard of G o vern o rs Alan Greenspan E. Gerald Corrigan/William J. McDonough* President, Fed eral R e se rv e B an k of New York William J. McDonough P resident, F e d e ra l R e se rv e B a n k of New York David W. Mullins, Jr. Vice C h airm an , B oard of G o verno rs Alan S. Blinder! Vice C h airm an , B oard of G o vern o rs Wayne D. Angell m em ber, B oard of G o vern o rs Janet L. Yellent m em ber, B oard of G o verno rs John P. LaWare m em ber, B oard of G o verno rs John P. LaWare m em ber, B oard of G o verno rs Lawrence B. Lindsey m em ber, B oard of G o vern o rs Lawrence B. Lindsey Susan M . Phillips m em ber, B oard of G o verno rs Susan M . Phillips m em ber, B oard of G o verno rs Edward W. Kelley, Jr. m em ber, B oard of G o verno rs Edward W. Kelley, Jr. Edward G. Boehne P resident, F e d e ra l R e se rv e B an k of P hilad elphia J. Alfred Broaddus, Jr. P resident, Fed eral R e se rv e B an k of Richm ond Silas Keehn P resident, F e d e ra l R e se rv e B an k of Chicago Robert P. Forrestal Robert D. McTeer, Jr. President, Fed eral R e se rv e B an k of D allas Jerry L. Jordan Gary H. Stern President, Fed eral R e se rv e B a n k of M inneapolis Robert T. Parry President, Fed eral R e se rv e B an k of S an Francisco C h airm an , B oard of G o vern o rs m em ber, B oard of G o verno rs m em ber, B oard o f G o verno rs P resident, F e d e ra l R e se rv e B an k of A tlanta P resident, F e d e ra l R e se rv e B a n k of C leveland * The lost FOMC meeting attended by Mr. Corrigan was May 18, 1993. Mr. McDonough began his tenure wilti the FOMC at the meeting of August 17, 1993. At the meeting of July 6-7, 1993, Mr. Janies H. Oilman, First Vice President of the New York Fed, served as alternate for Mr. Corrigan. t Mr. Blinder's tenure on the FOMC began with the meeting of July 5-6,1994. t Ms. Yellen's tenure on the FOMC began with the meeting of August 16, 1994. N K OF ST. L O U I S 13 REVIEW M AR CH / APRIL 26 Statement by Alan Greenspan, Chairman, Federal Reserve Board, before the Committee on Bonking, Housing, and Urban Affairs, U.S. Senate, July 20, 1994.Federal Reserve Bulletin (September 1994, pp. 793-4). 27 Minutes of the Federal Open Market Committee Meeting of July 6-7, 1993. Federal Reserve Bulletin (October 1993, p. 946). 28 Statement before the Joint Economic Committee, United States Congress, January 31, 1994. Federal Reserve Bulletin (March 1994, p. 233). 29 Minutes of the Federal Open Market Committee Meeting of February 3-4, 1994. Federal Reserve Bulletin (May 1994, p. 408). 30 Statement by Alan Greenspan, Chairman, Federal Reserve Board, before the Committee on Banking, Housing, and Urban Affairs, U.S. Senate, July 20, 1994.Federal Reserve Bulletin (September 1994, p. 794). 3 Minutes of the Federal Open Market 1 Committee Meeting of August 16, 1994. Federal Reserve Bulletin (November 1994, p. 996). 32 Statement before the Committee on Banking, Housing, and Urban Affairs, U.S. Senate, February 19, 1993. Federal Reserve Bulletin (April 1994, p. 294). clear guidance from the behavior of m onetary aggregates, this characterization o f policy was based on the observation that short-term interest rates remained extraordinarily low, particularly in relation to the underlying rate o f inflation. W ith short-term interest rates and inflation b oth holding at about 3 percent, short-term real interest rates (inflation adjusted) were close to zero. The Committee members viewed the m aintenance o f such low levels of interest rates as being an unwise and unsustainable policy over the long run: “...history strongly suggests that m aintenance o f real short-term rates at levels prevailing [in 1993] ultim ately would have fueled inflationary pressures.”2 4 This policy was m aintained in an effort to alleviate a num ber o f special factors w hich appeared to be inhibiting a strengthening of the econom ic recovery. In his testimony before Congress in February 1 9 9 3 , G reenspan cited a need for balance sheet restructuring by households and firms, difficult adjustm ents associated w ith business restructuring, and the contractionary effects o f cuts in federal defense spending. Throughout 1 9 9 3 , the m em bers o f the Com m ittee were circum spect regarding the accom m odative nature o f policy. At both the May and Ju ly m eetings, the Com m ittee endorsed a policy w hich— although calling for no im m ediate change in the stance of policy— specified a bias toward the possibility o f increasing the degree o f reserve restraint (see the appendix). T he M inutes o f the Ju ly m eeting reveal that som e m em bers “com m ented that while the need for any policy adjustm ent during the period ahead seemed som ew hat rem ote, the n ext policy move was more likely to be in the direction o f some firm ing than toward easing.”2 ' At a hearing before the Jo in t E conom ic Com m ittee o f Congress in late Janu ary 1994, Chairm an Greenspan clearly indicated that a move toward greater reserve restraint was not a m atter o f if, but o f w hen: “At som e point, absent an unexpected and prolonged w eak ening o f econom ic activity, we will need to move [short-term interest rates] to a more neutral stance.”2 At the next m eeting o f the 1 FO M C , the first step in that direction was 199 5 the Committee agreed to a proposal to have the Chairm an announce the move. “T he purpose of such an announcem ent, w hich would be a departure from past Committee practice, was to avoid any misinterpretation o f the Com m ittee’s action and its purpose.”2 (See the shaded 9 insert titled “Policy D isclosure.”) As the year progressed, further increases in the degree o f reserve pressure were under taken on five additional occasions, three of w hich were accom panied by increases in the discount rate (see Table 3 and the appendix). The Committee proceeded with the tightening in this step-by-step m anner in recognition o f the difficulty of knowing precisely what trading range for the federal funds rate was appropriate: “...it is an open question whether our actions to date have been sufficient to head off infla tionary pressures and thus m aintain favorable trends in the econom y.”3 0 At the same tim e, Com m ittee m em bers expressed a desire to move decisively enough to head off emerging inflationary expectations. In the discussion surrounding the % percentage point increase in the fed funds rate and dis cou nt rate taken on August 16, m em bers noted that “a more decisive policy move might reduce the need for further tightening later... by helping to curb inflationary expectations more effectively.”3 1 In fact, the objective o f subduing infla tionary expectations was a prom inent con sideration in the FO M C ’s policy deliberations in 1993 and 1994. One o f the indicators used to discern these expectations is the slope of the yield curve, the steepness o f w hich had been o f concern to policym akers for som e time. As early as February 1 9 9 3 , Greenspan had pointed out that “T he steep slope o f the yield curve and the expectations about future interest rates that the slope im plies suggest that investors rem ain quite concerned about the possibility o f higher inflation... ,”3 2 Although conclusions about inflationary expectations embedded in the yield curve should be interpreted cautiously, the reaction o f the term structure o f interest rates to the policy moves taken in 1 9 9 4 provides an interesting perspective on those events. As illustrated in Figure 5, the initial increases in short-term interest rates during 1 9 9 4 were accom panied by shifts in the entire term taken. Because this move was the first tight ening o f policy to be undertaken in some time, 14 POLICY DISCLOSURE A nother issue w ith w hich the Com m ittee grappled throughout 1993 and 1 9 9 4 was the tim ing of, and extent to w hich, policy decisions should be announced to the public. Traditionally, the policy decisions o f the FO M C have been closely guarded secrets, w ith m inutes o f each m eeting issued only after the subsequent m eeting had concluded (so that the current operational directive was never made public). T he purpose o f this confidentiality was to avoid the possibility of financial m arket instability in the wake o f policy changes, as well as to give the FO M C m ore flexibility in the im plem entation o f policy. This practice has always been controversial, and criticism o f the Fed’s traditional secrecy had recently intensi fied, particularly am ong som e m em bers o f Congress. The FO M C reconsidered the disclo sure issue during 1 9 9 3 , and experim ented w ith announced policy changes during 1994. The issue o f public disclosure was discussed at the first FO M C m eeting o f 1 9 9 3 , as the Com m ittee considered a prelim inary report o f a subcom m ittee that had “been established to exam ine various issues relating to the release o f inform ation about Com m ittee m eetings and d ecisions.” The m em bers agreed that the public should be fully inform ed about policy decisions, but expressed con cern that “release o f inform ation should n ot be allowed to com prom ise the overriding objective o f m aking and im plem enting the best possible d ecisions.” At the Ju ly 6 -7 , 1 9 9 3 , m eeting, the issue arose again in the context o f “media reports of the purported results of the May m eeting before the Com m ittee had made public any infor m ation about that m eeting.” On that occasion, the m em bers “agreed that particular care needed to be taken for som e period before and after each o f its m eetings” to prevent leaks. An extended discussion o f alternatives for releasing detailed inform ation on the delib erations o f the Com m ittee took place at the m eeting o f N ovem ber 16, 1993. The Com m ittee agreed to authorize “lightly edited” transcripts o f past m eetings and to release the transcripts to the public five years after the m eetings, “su b ject to the redaction o f espe cially sensitive m aterials.” The issue o f public announcem ents took on greater prom inence at the first m eeting of 1994, w hen the Com m ittee decided to announce the short-term policy decision prom ptly after the m eeting. T he purpose o f this announcem ent was to “avoid any m isinterpretation o f the Com m ittee’s action and its purpose. Because this would be the first tightening policy action... [since early 19 8 9 ,] it was likely to attract considerable atten tion.” Com m ittee m em bers were careful to point out that they did not consider this announcem ent to set any precedents for future announcem ents. Nevertheless, each o f the subsequent changes in policy during 1 9 9 4 were followed by a b rief announcem ent at the conclu sion o f the meeting. T he announcem ents were generally brief, but gave qualitative inform ation regarding the nature o f the policy decisions, and also gave an indication as to the m agnitude o f federal funds rate alterations that would be asso ciated w ith the changes. For instance, a statem ent follow ing the m eeting o f August 16, 19 9 4 , com bined the announcem ent o f a V percentage point increase in the discount rate i w ith an announcem ent that the FO M C had decided that “this increase would be allowed to show through com pletely into interest rates in reserve m arkets”. At the m eeting o f Ju ly 5 -6 , 1 9 9 4 , the Com m ittee addressed the issue o f announcing the outcom e o f a d ecision to leave policy unchanged. T he m em bers agreed to “provide a brief and informal indication that the m eeting had ended and that there would be no further announcem ents.” A sim ilar announcem ent o f “no further announcem ents” was released at the conclusion o f the Septem ber and D ecem ber m eetings. In early 1 9 9 5 , the Com m ittee endorsed the practice o f having the Chairm an issue a b rief statem ent describing policy actions after each m eeting as a regular practice. 1All quotes in this shaded insert ore token from various issues of the Federal Reserve Bulletin. FEDERAL RESERVE B A N K OF ST. L OUI S 15 REVIEW MARCH/APRIL F ig u r e 5 on reserve positions” on six separate occasions in 1 9 9 4 , after leaving policy unchanged over the course o f 1 9 9 3 . T he m ost readily observ able response to these developm ents has been the rise in short-term interest rates. It is often asserted that the Fed is responsible for pushing short-term interest rates higher, and that b oth the intent and the effect of these rate increases is to slow econom ic growth. On the other hand, interest rates reflect the balance of supply and dem and in credit m arkets. H ence, when econom ic activity is accelerating and credit demands rising, m arket forces should be expected to push interest rates higher and the Fed’s actions in the m arket for bank reserves could be interpreted as allowing those m arket forces to w ork. F o r econom ists evaluating the im pact o f the FO M C ’s policy decisions, the distinction betw een these two perspectives is o f great im portance. Is the Fed actively attem pting to m anipulate the course o f the economy, or merely adjusting the settings o f its policy instrum ents to m eet evolving econom ic conditions? O ne can take several approaches to addressing this question, none o f w hich is entirely satisfactory. Perhaps the sim plest approach is to exam ine the behavior o f the raw data sum m arizing FO M C policy actions— the instrum ents or proxim ate targets o f policy. Figure 6 illustrates the recent behavior o f the federal funds rate, the m ost widely m onitored measure o f the stance o f m onetary policy. After declining from 1 9 8 9 through 1 9 9 2 , the funds rate rem ained fairly stable at around 3 percent during 1993 and then gradually rose to 5 .5 percent during 1 9 9 4 . It is the increase in this key short-term rate w hich m ost observers point to as a m easure o f the delib erate tightening o f m onetary policy in 1994. However, a perusal o f the behavior of longer-term interest rates illustrated in Figure 7 show s that m any interest rates began to rise before the FO M C ’s first policy adjustm ent in February 1 9 94 . Long-term interest rates reached their lows during Septem ber and Y ie ld C u rves Percent 19 Maturity structure. By April 2 9 , after the first three 3 point increases in the federal funds rate, A the three-m onth and 30-year yields had risen by roughly equivalent magnitudes. Yields on interm ediate-term m aturities had risen by som ew hat greater am ounts, suggesting that investors expected that further increases in short-term rates were likely in the near future. By early November, the yield curve had shifted further, but with the spread betw een long-term and short-term yields narrowing: From the beginning o f the year, three-m onth yields had risen by m ore than 2 percentage points, while the yields on 30-year bonds had risen about 13 percentage points. The response of A the term structure to the 75 basis point increase in the federal funds rate on Novem ber 15 is even more striking. Longer m aturity yields actually declined follow ing that change, and continued to trend downward until the end o f the year. This unusual pattern o f rate m ovem ents— and the flattening o f the yield curve that they represent— suggest that by the end o f 1 9 9 4 , inflationary expectations were responding favorably to the cum ulative im pact o f the FO M C ’s policy moves. CHARACTERIZING POLICY CHANGES: A SEA CHANGE OR M ERELY A COURSE CORRECTION? O ctober o f 1 9 9 3 , and rose through m ost o f 19 9 4 . Figure 8 suggests a reason for the upward pressure on rates: Dem and for credit, represented by the volum e o f com m ercial bank loans, picked up dram atically during the latter part o f 1 9 9 3 . Taking these devel- As described in the previous section, the FO M C acted to “increase the degree of pressure N K OP S T . L O U I S 16 REVIEW MARCH/APRIL opments into consideration, the FO M C’s policy approach in 1 9 9 4 m ight be m ore accurately described as one o f n o t preventing a natural increase in interest rates, rather than one o f deliberately pushing rates higher. A nother raw m easure o f the thrust o f m onetary policy is the growth rate o f non borrowed reserves. Although the FO M C itself does not presently define its policies in term s o f reserve growth, the supply o f non borrowed reserves is directly affected by the Fed’s open m arket operations. Changes in the demand for reserves largely reflects fluctuations o f the checkable deposits com ponent of M l. As illustrated in Figure 9 , a reserve-based view suggests that policy in 1 9 93 was n ot as static as suggested by the stability o f the fed funds rate. Rather, to m aintain a stable funds rate, reserve growth was allowed to fluctuate rather widely throughout the year. Figure 9 also show s that by recent historical standards, the average growth rate o f reserves in 1993 was quite rapid. Reserve growth dropped off sharply during 1 9 9 4 , turning negative in the latter part o f the year. E conom ists w ho take a narrow -m oney approach view the rapid growth in non bor rowed reserves, the m onetary base and M l in 1993 as suggesting that policy was not neutral. Such a view is based on the notion that rapid growth in m oney w ill, w ith a lag, cause rapid growth in aggregate demand. According to this view, policy m ight be characterized as being highly expansionary in 1 9 9 2 and 1993, w ith an abrupt reversal in 1994. Such stopand-go policy, illustrated in Figure 9 by wide fluctuations in the growth o f nonborrow ed reserves, is thought by som e to exacerbate the business cycle. Given these som ew hat disparate indica tions from the proxim ate targets o f monetary policy and the am biguity o f distinguishing betw een deliberate changes in the stance of policy from endogenous responses to broader econom ic developm ents, econom ists have sought to develop m ore specific m ethods o f identifying m ajor Federal Reserve policy shifts and distinguishing them from m inor policy adjustm ents. O ne approach, pioneered by Fried m an and Schwartz (1 9 6 3 ) and recently extended by Rom er and R om er (1 9 8 9 ), is the “narrative approach.” This approach seeks to 1995 F ig u r e 6 F e d e ra l Funds R ate and Discount R ate Percent F ig u r e 7 Selected In terest R ates Percent identify discrete shifts in policy by exam ining qualitative m easures o f policy: for instance, the statem ents issued by the FO M C and its members. Romer and Romer developed criteria for distinguishing turning points in policy, w hich identify a policy “sh o ck ” as a situation “in w hich the Federal Reserve attem pted to exert a contractionary influence on the econ om y in order to reduce in flation.”3 These 3 events can be thought o f as deliberate changes in the overall thrust o f policy. Although many observers m ight charac terize the FO M C ’s policy decisions in 1 9 9 4 as constituting such a policy sh ock , it is hard to ju stify this conclu sion using the R om er and Rom er criteria. In particular, the Rom ers exclude from their classification episodes in w hich the FO M C acted to prevent the em er- 33 Romer ond Romer (1989, p 134). . Another approach to characterizing policy follows a statistical m ethodology to isolate w hat is know n as a Federal Reserve reaction function. By exam ining historical data, this approach attem pts to identify com ponents o f FO M C policies w hich are predicable reactions to emerging econom ic data. After controlling for these factors, the m ovem ents in the Fed ’s instrum ents w h ich rem ain unexplained are interpreted as constituting policy innovations or shocks. Figure 10 illustrates the identification of innovations using a m odel suggested by Bernanke and Blinder (1 9 9 2 ). In the model used to generate the shocks illustrated in Figure 10, the federal funds rate is used as the measure o f policy, and the Fed’s reaction func tion is assumed to depend on a measure of infla tion (as m easured by the C PI) and a m easure of real econom ic activity (th e unem ploym ent rate for m ales ages 2 5 -5 4 ). The FO M C ’s reaction function is estim ated to depend on inflation and unem ploym ent over the prior six m onths, w ith the rem aining m ovem ents of the fed funds rate taken to b e exogenous policy innovations (th at is, deliberate acts by the FO M C , rather than standard responses to em erging econom ic developm ents).3 6 T h e series o f innovations illustrated in Figure 10 is m uch m ore variable than one m ight ordinarily associate with deliberate FO M C policy changes.3 T h e innovations 7 appear more to reflect random variability in the series than deliberate, discrete policy changes. It could be argued, however, that it is the cumulative effect o f sm all innovations to the funds rate w hich are im portant in evaluating the overall thrust o f m onetary policy. Figure 11 show s the cum ulative im pact o f the innovations identified in Figure 10. W h en the sh ocks are added up over time, they provide a m ore readily interpretable accou n t o f the thrust o f m onetary policy, w ith easily identifiable turning points. F o r exam ple, this cum ulative m easure suggests that policy was roughly constan t from 1985 through 1 9 8 7 (a period w hen the fed funds rate itself was generally falling), then tightened rather dram atically during 1 9 8 8 . T h e period from 1 9 8 9 through 1 9 9 2 is characterized by a gradual easing o f policy. Note, however, that the stability o f the fed funds rate during 1993 F ig u r e 8 Com m ercial B a n k Loans Consum er, an d Com m ercial & In d u strial Loans Billions of dollars Total Billions of dollars 34 Romer and Romer (1989, p. 138). 35 Romer ond Romer (1989, p. 138). 36 Technically, the shocks in Figure 10 are the innovations to the funds rote equation in a three-variable, unre stricted vector autoregression (VAR), estimated using six lags of monthly data. 37 This criticism of the VAR approach to estimating policy functions has been made before; see, for example, Cecchetti (1994). gence o f inflationary pressures (as opposed to responding to current inflation). F or exam ple, they specifically exclude an episode in 1966, in which “the Federal Reserve’s stated intent was clearly not to reduce aggregate demand, but rather to prevent outward shifts in aggregate demand that it believed would otherw ise have occurred .”3 T he sim ilarity to 4 recent events is evidenced by the widespread interpretation of the Fed’s 1 9 9 4 policy actions as being preemptive in nature. Ju s t as the Rom ers describe for 1 9 66 , “the perception of the econom y’s strength was based not ju s t on current data bu t also on projection s... .”3 E x S post, analysts who follow a narrative approach to characterizing Fed policy m ight consider 1 9 9 4 to constitute a policy shock, b u t it is n ot apparent that it is w hen one applies the ex ante criteria o f the Rom ers. NK OF S t . L OUI S 18 is not associated w ith an unchanging policy thrust using this measure. Rather, the relatively low level o f the funds rate in 1993 is associ ated with a series o f negative shocks w hich, w hen cum ulated, suggest that the policy was increasingly stim ulative throughout the year. In 1994, innovations to the funds rate were generally positive. N ote, however, that the cumulative im pact o f innovations in 1 9 94 did not nearly approach the level o f restraint im plied by this m easure o f policy for 1987, when the federal funds rate itself rose by far less than it did last year. It also should be noted that Figure 11 provides little inform a tion on w hich to ju d g e the absolute position o f a neutral policy stance. Although the cum ulative position o f the shocks end near zero, this level should be interpreted as rep resentative o f the average degree of reserve restraint over the estim ation period, 19 5 9 -9 4 . (In fact, that the cum ulated residuals end the period at zero is true by con stru ction .) This period was characterized by an average inflation rate of 4.75 percent and an unemployment rate o f m ore than 6 percent. Hence, this level of cum ulative adjustm ent in the funds rate is neutral only if these outcom es are deemed desirable (and if the estim ated equations are, in fact, stable over tim e). F ig u r e 9 N onborrow ed R e se rv e s G row th Percent Change Over Previous 12 months F ig u r e 1 O F e d e ra l Funds R ate Inno vatio ns Percent CONCLUSION In spite o f the m arked contrast betw een the character o f policy actions o f the FO M C in 1993 versus 199 4 , in a broader context the actions of the Com m ittee can be interpreted as part o f a continuing process o f evolution in the strategy and tactics o f the conduct o f m onetary policy. T he two-year period was characterized by a continuing rhetoric sup porting the pursuit o f long-term price stability, w ith policy actions taken in the context of this objective. The changing nature o f the U.S. financial structure and the general econom ic environ m ent, however, have made the rigorous pursuit o f m onetary aggregate objectives m ore diffi cu lt to justify; and the past two years have witnessed the Committee grappling with issues regarding the appropriate conduct o f policy in the absence o f reliable signals from various m oney stock measures. F ig u r e 1 1 C um ulative Funds R ate In n o vatio n s Percent BfVltN Gavin, William T., and Alan C. Stockm an. "A Price Objective for Monetary Policy," Federal Reserve Bank of Cleveland Economic Commentary (April 1 , 1 9 9 2 ) . In the process o f making tactical decisions, the members o f the Com m ittee reached a con sensus early in 1 9 9 4 that the existing policy stance was one w h ich had rem ained overly accommodative, and policy actions during 1994 have been made in the context o f adjusting policy to a less-accommodative posture. Unlike many other periods w hen the Committee reacted in response to emerging price pressures, the policy adjustm ents in 1 9 9 4 were intended to be preem ptive m oves, designed to head off what the members viewed as a substantial risk o f rising inflation. H ence, the lack o f visible signs o f an increase in inflation should not be taken as a lack o f ju stification for the FO M C ’s recent stance, bu t as evidence o f its success. Joint Economic Committee. Hearing To Examine M onetary Policy and the Economic Outlook. U .S . House of Representatives, December 7 , 1 9 9 4 . Jordan, Jerry L. "M ust the Fed Fight G row th?" Federal Reserve Bank of Cleveland Economic Commentary (July 1 5 , 1 9 9 4 ) . _ _ _ _ _ _ _ _ "Credibility Begins with a Clear Commitment to Price _ Stability" Federal Reserve Bank of Cleveland Economic Commentary (October 1 , 1 9 9 3 ) . M aisel, Sherm an J. Managing the Dollar. Norton, 1 9 7 3 . Meulendyke, Ann-Marie. "A Review of Federal Reserve Policy Targets and Operating Guides in Recent D ecades," in Federal Reserve Bank of New York, Intermediate Targets and Indicators for Monetary Policy: A Critical Survey ( 1 9 9 0 ) , pp. 4 5 2 -7 3 . Orphanides, Athanasios, Brian Reid and Dovid Sm all. "The Empirical Properties of a Monetary Aggregate That Adds Bond and Stock Mutual Funds to M 2 ," thisReview (Novem ber/Decem ber 1 9 9 4 ) , pp. 3 1 -5 1 . REFERENCES Anderson, Richard G. "The Effect of Mortgage Refinancing on Money Demand and the M onetary Aggregates," this Review (July/August 1 9 9 3 ) , pp. 4 9 -6 3 . Papodimitriou, Dimitri B ., and L. Randall Wray. "M onetary Policy Uncovered," Public Policy Brief. The Jerome Levy Economics Institute of Bard College, 1 9 9 4 . Angell, W ayne. "A Single Goal for the FedThe Wall Street Journal ," (November 1 6 , 1 9 9 4 ) , p. A 2 8 . Poole, W illiam , "Keep the M in M onetary Policy," and Capital Jobs Bernanke, Ben S ., and Alan S . Blinder. "The Federal Funds Rate and the (winter 1 9 9 4 ) , pp. 2-4. Channels of Monetary Transmission," American Economic Review The Ritter, Joseph A., "The FOMC in 1 9 9 2 : A M onetary Conundrum," this (Septem ber 1 9 9 2 ) , pp. 9 0 1 -2 1 . Review (M ay/Ju n e 1 9 9 3 ) , pp. 3 1 -4 9 . Cecchetti, Stephen G. "Distinguishing Theories of the Monetary Romer, Christina D., and David H. Romer. "Does M onetary Policy Transmission M echanism ," Economic Policy Conference, this Review M atter? A New Test in the Spirit of Friedman ond S chw artz," NBER (forthcoming). Macroeconomics Annual. MIT Press, 1 9 8 9 , pp. 1 2 1 -7 0 . Collins, S e an , and Cheryl L. Edwards. "An Alternative Monetary Stone, Courtenay C ., ond Daniel L. Thornton. "Solving the 19 8 0 s ' Aggregate: M 2 Plus Household Holdings of Bond and Equity Mutual Velocity Puzzle: A Progress Report," this Review (August/Septem ber Funds," thisReview (Novem ber/Decem ber 1 9 9 4 ) , pp. 7 -29. 1 9 8 7 ), pp. 5 -23. Committee on Banking, Housing, and Urban Affairs. Federal Reserve's Tinsley, P., J . Berry, G. Fries, B. Gorrett, A. Norman, P.A.V.B. S w am y ond Second Monetary Policy Report for 1 9 9 3 . U .S. Senate, July 2 2 , 1 9 9 3 . P. Von Zur Muehlen. "The Impact of Uncertainty on the Feasibility of Humphrey-Hawkins O bjectives," Journal of Finance (M ay 1 9 8 1 ) , The Cummins, Claudia. "Can Adjustments Help Lagging M 2 to Measure U p ?" pp. 4 8 9 -9 6 . American Banker, Vol 1 5 7 , No. 2 2 8 , (November 3 0 , 1 9 9 2 ) , p. 1. Federal Reserve Bank of St. Louis. "A Price Level Objective for Monetary Policy," 1994 Annual Report (forthcoming). Federal Reserve Bulletin. Various issues. Federal Reserve Reform Act Public Low 9 5 -1 8 8 . Feinman, Joshua N., and Richard D. Porter. "The Continuing W eakness in M 2 ," Finance and Economics Discussion Series Working Paper No. 209, (Board of Governors of the Federal Reserve System , September 1 9 9 2 ). Friedm an, Milton, and Anna Jacobson Schwortz. Monetary History of A the United States, 1867-1960. Princeton University Press, 1 9 6 3 . Full Employment and Balanced Growth Act of 1 9 7 8 , Public Law 9 5 -5 2 3 (H.R. 5 0 ) , October 2 7 , 1 9 7 8 . 20 REVIEW MARCH/APRIL 19 A p p e n d ix SUMMARY OF FOMC M EETINGS IN 1993 AND 1994 February 2-3, 1993 able n ot only to arrest the possible emergence of greater inflation b u t especially to prom ote further disinflation.” At the outset o f 1 9 9 3 , the inform ation available to the FOM C suggested that economic activity had picked up sharply toward the end o f the previous year. Com m ittee m em bers cited num erous conditions that led them to believe that the expansion would continue throughout 1993: “Structural im pedim ents to the expansion seem ed to be dim inishing as the financial cond ition o f households, business firm s, and financial institutions continued to im prove.” D eficit reduction program s, expected to be announced by President C linton, were additional signs that interest rates could fall. Nevertheless, it was noted that “the ou tlook rem ained su b ject to a good deal o f uncertainty.” The Com m ittee agreed, unani mously, that im m ediate policy should be “to m aintain the existing degree o f pressure on reserve positions.” The directive left open the possibility o f accepting either greater or lesser reserve restraint, should conditions during the interm eeting period warrant. May 18, 1993 At the May 18 m eeting, the FO M C was presented w ith staff projections w hich sug gested that “econom ic activity would grow at a m oderate pace and that such growth would foster a gradual reduction in margins of unem ployed labor and capital.” T his analysis included portions o f the C linton A dm inistra tion’s fiscal package pertaining to the long run. The Committee also saw “evidence o f a slower econom ic expansion and a higher rate of inflation sin ce late 1 9 9 2 ... .” “In the view o f a m ajority o f the members, wage and price developm ents over recent months were sufficiently worrisome to warrant positioning policy for a move toward restraint should signs of intensifying inflation continue to multiply.” Nevertheless, “som e m em bers preferred to retain a directive that did not incorporate a presum ption about the likely direction o f a change in policy...during the interm eeting period. They were concerned that adopting a biased directive m ight prove to be an overreaction to tem porary factors and to a short-lived upturn in inflationary sentim ent that was not warranted by under lying econom ic cond itions.” In the end, the Com m ittee adopted an asym m etric directive w hich suggested an inclination toward greater reserve restraint rather than lesser. There were two dissents from this decision, which reflected widely divergent perspectives. Mr. Boehne saw the adoption o f a biased directive as being unwarranted, since “under lying econom ic conditions did n o t point toward an extended period o f higher inflation.” In contrast, Mr. Angell dissented “because he believed that the persisting indications of rising inflation...called for a prompt move to tighten m onetary policy.” March 23, 1993 A review o f recent econom ic activity at the M arch m eeting found the expansion con tinuing at a m oderate pace in the first few m onths of 1993, after strong gains during the latter part of 1992. Short-term market interest rates remained relatively unchanged though long-term rates fell substantially. It was noted that in early M arch, “Treasury bonds and conventional fixed-rate m ortgages reached their low est levels sin ce 1 9 7 3 .” The policy directive adopted by the Committee called for “maintaining the existing degree o f pressure on reserve positions.” Again, the Com m ittee decided upon a sym m etric directive for guiding policy during the interm eeting period.2 Governors Angell and Lindsey dissented from the Com m ittee’s decisions because they were concerned about the inflation outlook. They favored “an im m ediate m ove to tighten reserve conditions...Such an action was desir July 6-7, 1993 In the discussion o f short-term policy at the Ju ly m eeting, m ixed signals on the 21 1 All direct quotations cited in this appendix are drawn from the "Minutes of the Federal Open Market Committee," os reported in various issues of the Fecfera/ Reserve Bulletin. 2 A "symmetric" directive is worded even-handedly with respect to pos sible modifications to policy during the intermeeting period. A socalled "asymmetric" directive is one which suggests a preferred direction for policy changes, and is indicated by the use of the words "might" and "would," with "would" considered to be the stronger of the two terms. For example, a directive which states "somewhat greater reserve restraint would be acceptable, and somewhat lesser reserve restraint might be acceptable" leans in favor of greater reserve restraint. See Ritter (1993). REVIEW MARCH/APRIL perform ance o f the econom y and questions about fiscal policy “contributed to considerable uncertainty about the ou tlook .” Some m em bers were concerned, however, that “despite the very sluggish behavior o f the broad m ea sures o f m oney thus far this year, m onetary policy was relatively expansive as evidenced by a variety o f other indicators including the growth in narrow m easures o f m oney and reserves and the very low levels o f m oney m arket interest rates.” Several mem bers went on to point out that in the face o f w orsening inflation expectations, an unchanged policy could be more accom m odative than intended. M ost m em bers indicated that there was “little or no reason to change m onetary policy in either direction.” Consequently, the degree o f pressure on reserve positions was left unchanged. T he Com m ittee also retained the asymmetric bias towards restraint that was adopted at the previous m eeting. Mr. Angell dissented, preferring an im m ediate tightening o f reserve restraint. but also appeared to have improved confidence in financial m arkets.” A num ber o f factors were cited as sources o f concern. New taxes associated w ith the deficit reduction legislation and uncertainties about health care reform w ere said to have generated “cautious attitudes among business executives.” T h e ou tlook for n et exports was also “cited as a negative factor.” The Com m ittee decided to m aintain the short-term policies o f the August m eeting. November 16, 1993 Inform ation reviewed at the Novem ber meeting continued to suggest the maintenance o f a sustained, but moderate expansion. Some evidence of strengthening was cited. The Com m ittee, however, noted that “econom ic activity clearly rem ained sluggish or even depressed in som e parts o f the country and overall business attitudes could still be described as cautious.” Fiscal policy developm ents— in particular, uncertainty regarding health care reform and the ongoing retrenchment of defense spending— continued to be cited as factors w hich were likely “to inhibit the expansion over the year ahead.” In hindsight, this view m ight be characterized as being overly pes sim istic: The fourth quarter o f 1 9 9 3 turned out to be one o f the strongest quarters for econom ic growth in recent memory, w ith real GDP rising at a rate o f 6 .3 percent. Data revealing this strength, however, were n ot generally available un til early 1994. In this context, the m em bers o f the Com m ittee unanim ously agreed to support a directive w hich called for “m aintaining the existing degree o f pressure on reserve posi tions and that did not include a presum ption about the likely direction o f any adjustm ent to policy during the interm eeting period.” August 17, 1993 1995 At the August m eeting, the m em bers o f the FO M C saw little inform ation in recent developments w hich would alter the “outlook for moderate and sustained growth in economic activity.” Although m any m em bers noted that current policy was associated w ith very low short-term interest rates, there was also “no com pelling evidence that current m one tary policy was fostering credit flows usually associated with speculative excess or impending increases in price pressures.” W ith these considerations in mind, Committee members agreed “to the desirability of a steady policy course.” Accordingly, the Committee voted to “maintain the existing degree o f pressure on reserve positions.” The directive gave no indication o f a preference for altering this stance in either direction during the interm eeting period. December 21, 1993 By Decem ber, indicators were beginning to suggest that econom ic activity had picked up in recent m onths, w ith strength observed in consum er spending, durable equipm ent purchases, con struction and industrial pro duction (particularly in the automotive sector). M eanw hile, price indexes “pointed to little change in inflation trends.” In their comments about recent developm ents, Com m ittee September 21, 1993 At the Septem ber m eeting, Com m ittee members noted that general econom ic activity remained moderate at best, with considerable disparities existing across locales and indus tries. D eficit-reduction legislation that was passed in Ju ly “implied increased fiscal restraint 22 m v i t w members observed that the positive signs “had fostered appreciable improvement in business and consum er sentim ent... .” M em bers also recognized, however, that the strengthening was not geographically uniform and that a num ber o f factors continued to exert con straining influences. Particular concerns cited included “balance-sheet rebuilding, business restructuring and downsizing activities, and the downtrend in defense spending.” In discussing the directive for the upcom ing period, m ost m em bers “indicated that they could support a directive that called for maintaining the existing degree of pressure on reserve positions,” w ith no bias toward adjusting conditions one way or the other during the interm eeting period. Messrs. Angell and Lindsey both dissented, citing the belief that current policy was overly accom m odative, and “needed to be adjusted promptly toward a m ore neutral stan ce.” Mr. Angell also stressed that the Committee should focus on “forw ard-looking indicators such as the price of gold and the estimate of the natural rate o f interest provided by the yield on fiveyear Treasury notes. He favored an immediate increase o f 5 0 basis points in the federal funds rate...Mr. Lindsey com m ented further that a modest policy move now would appro priately signal the Com m ittee’s concern about the potential for inflation.” the proposed slight policy adjustm ent at this point, but m any observed that additional firming probably would be desirable later.” T he directive adopted by the Com m ittee at this tim e, however, retained an unbiased instruction w ith regard to possible inter m eeting adjustm ents. During the subsequent interm eeting period, federal funds traded at a rate of around 3 ‘A percent— approxim ately *A per cent higher than the rate that had prevailed throughout 1993. March 22, 1994 Information reviewed at the March meeting indicated that the econom y “expanded appre ciably further in the early m onths o f 1994, despite unusually severe w inter w eather.” In discussing policy for the upcom ing period, “all the m em bers supported a further move toward a less accom m odative policy stan ce.” As a conceptual objective, it was agreed that policy should strive toward reaching a “m ore neutral p osition .” The m em bers generally concluded that “such a policy stance was still som e distance away, and the key issue facing the Com m ittee was not w hether but by how prom ptly the neces sary adjustm ent should be com pleted.” After a discussion o f the possible m agni tude o f policy adjustm ents for the upcom ing period, the Committee decided to duplicate its previous policy move, seeking to increase slightly the existing degree o f pressure on reserve positions, w ith no explicit asymmetry in the intermeeting stance. “Messrs. Broaddus and Jordan dissented because they preferred a stronger move toward a m ore neutral policy stan ce.” They viewed recent increases in long-term interest rates as indicating rising inflation expectations, and perceived that “the principal policy risk had become one of remain ing accom m odative for too long a period .” Subsequently, incom ing data suggested considerable strength in the econom y and February 3-4, 1994 By the tim e o f the FO M C ’s first m eeting o f 1994, incom ing econom ic data revealed that a sharp increase in econom ic activity had taken place in late 1993 and that the data available for the early weeks o f the year “suggested appreciable further gains.” D uring the Com m ittee’s discussion, “m em bers generally expressed concern about a buildup in inflationary pressures...especially if what they currently viewed as a very accom modative m onetary policy were m aintained.” W ith regard to policy for the upcom ing peri od, mem bers “favored an adjustm ent toward a less accom m odative policy stance, though views differed to som e extent w ith regard to the am ount o f the ad ju stm ent.” After discussing options involving the magnitude o f possible policy adjustm ents, “all the mem bers indicated that they could accept “indications that financial m arkets were less likely to be destabilized by a further policy action.” Against this background, on April 18, “the degree o f accom m odation in reserve pressures was reduced a little further.” Each of the policy moves resulted in federal funds rate increases o f about ‘A percent. 23 REVIEW MARCH/APRIL May 17, 1994 The Com m ittee generally agreed that “a prom pt further tightening m ove was needed to provide greater assurance that inflationary pressures in the econom y would rem ain sub dued.” Consequently, the FO M C approved a directive which called for “increasing somewhat the degree o f pressure on reserve p o sition s.” It was agreed that if the Board o f G overnors approved a lh percentage p oint increase in the discount rate (as was expected), that action should be allowed to be reflected fully in reserve market conditions. Given that members generally expected “that a further policy action was not likely to be needed for som e tim e,” the directive adopted by the Com m ittee included a sym m etric instruction regarding possible interm eeting adjustm ents. At the meeting of May 1 7 ,1 9 9 4 , the Committee reviewed evidence “o f consider able m om entum in the econom ic expansion.” M em bers noted that “the expansion over the first half o f the year was likely to be a little stronger than had been expected at the time o f the M arch m eeting.” In the context of current policy, Committee m em bers “favored prom pt further action to remove much of the remaining accommodation in the stance o f m onetary policy, at least as measured by real short-term interest rates.” Consequently, the Committee adopted a direc tive w hich called on the O pen M arket Desk to “increase som ew hat the existing degree of pressure on reserve positions.” A sym m etric policy toward intermeeting period adjustments was adopted. It was agreed that “the adjust m ent should fully reflect the '/i percentage point increase in the d iscount rate that the Board o f G overnors was expected to approve later in the day.”3 September 27, 1994 Data reviewed at the Septem ber m eeting suggested that “the pace o f econom ic expan sion remained substantial, though it appeared to have moderated slightly in recent m onths.” Moreover, staff projections “suggested that growth in econom ic activity would slow appre ciably over the next several quarters.” Previous policy moves were seen to have “elicited only a m ild response thus far in interest-sensitive sectors o f the econom y,” and output growth was “near m axim um sustainable levels.” It was judged that “the risks o f som e rise in inflation rates probably had increased.” Nevertheless, m ost o f the Com m ittee mem bers felt “that the recent evidence did not warrant an immediate further tightening,” given that there had been an “appreciable tightening o f policy approved in A ugust.” It was expected that incom ing inform ation during the intermeeting period might “provide a firmer basis for ju d ging the course o f the econom y and the risks o f greater inflation.” July 5-6, 1994 3 Changes in the discount rate are ini tiated by the individual Federal Reserve banks, but must be approved by the Board of Governors before becoming effective. This division of responsibility underlies the rather odd circumstances surrounding increases in the federal funds rate and discount rates in 1994. In each case, the FOMC endorsed a policy which incorporated expected changes in the discount rate, which had already been proposed by the Federal Reserve banks and which wete approved by the Board of Governors as part of the overall policy change. 1995 Inform ation reviewed at the Ju ly meeting indicated that the econom y grew substantially in the second quarter, but that expansion was expected to slow som ew hat over the balance o f the year. Given uncertainty regarding the extent o f the economy’s slowing and the effects o f previous policy moves, m ost FO M C m em bers considered “that it would be prudent for the Com m ittee to assess further developments before taking any actio n .” Consequently, the policy directive adopted for the upcoming period called for “maintaining the existing degree o f pressure on reserve position s,” although it also included a bias toward the possibility o f increasing the degree o f reserve pressure prior to the next m eeting. “Mr. Broaddus dissented because he believed that additional near-term tightening was n ec essary to contain inflation.” Consequently, the Com m ittee approved a directive that called for “m aintaining the existing degree o f pressure on reserve posi tion s,” b u t w hich also included “a shift from the sym m etry in the August directive to asymmetry toward restraint.” Mr. Broaddus dissented from this directive, believing “that a prom pt move to som ewhat greater m onetary restraint was needed at this p o in t,” given “signs o f increasing price pres sures and rising inflationary expectation s.” August 16, 1994 Although the pace o f the econom ic expansion remained substantial, inform ation reviewed by the Com m ittee in August sug gested som e slowing. Staff forecasts suggested “that the econom y was operating close to its long-run capacity.” F EDERAL RESERVE B A N K OF ST. L O U I S 24 REVIEW MARCH/APRIL November 15, 1994 slowing in econom ic activity over the next few quarters, b u t this outlook was predicated on the assumption “that monetary policy would not accom m odate any continuing tendency for aggregate dem and to expand at a pace that could foster sustained higher inflation.” In their discussion of econom ic developments, Com m ittee m em bers “saw scant evidence at this point o f any m oderation in the growth o f overall econom ic activity.” In their discussion o f policy for the interm eeting period ahead, many m em bers anticipated that “the need for further monetary restraint was highly likely.” A majority, how ever, advocated no change in policy, at least through the beginning o f 1 9 9 5 , preferring a pause in order “to assess the underlying strength of the econom y and the im pact of previous m onetary restraint.” Given the probable need for further tightening at some point, a m ajority agreed that the directive should express an asym m etry “tilted toward restraint.” Mr. La W are dissented from this directive, favoring an im m ediate policy tightening. He cited “high and increasing levels o f utilization in labor and capital m arkets” as indicating a risk o f rising inflation, and feared that inaction by the Committee “could heighten inflationary expectations by raising concerns about the System ’s com m itm ent to the objective o f sus tainable, noninflationary econ om ic grow th.” By the Novem ber m eeting, incom ing inform ation suggested that “growth o f the economy remained substantial,” and “mem bers com m ented on widespread statistical and anecdotal indications of considerably greater strength in the business expansion than they had anticipated earlier.” In this context, m em bers “saw a considerable risk o f higher inflation.” In their discussion of near-term policy, “all the members agreed that the current stance of m onetary policy presented unacceptable risks o f embedding higher inflation in the economy.” A lthough m em bers “acknow ledged the diffi culty o f ju d ging the precise degree o f m one tary restraint that would be needed to attain the Com m ittee’s objectives,” m ost mem bers advocated “an unusually sizable firming of m onetary policy.” O thers were reported to have “preferred a less forceful policy m ove,” taking a m ore “cautious approach.” Ultimately, all m em bers ended up sup porting a directive calling for a “significant increase” in reserve pressure, w hich was to take account of a 3/4 percentage point increase in the discount rate. Given the relative forcefulness o f this move, the Com m ittee adopted a directive that was sym m etric w ith regard to interm eeting adjustm ents, although it was noted that “a symmetric directive would n ot prevent an interm eeting adjustm ent if nearterm developm ents differed substantially from expectations.” December 20, 1994 Inform ation reviewed at the D ecem ber m eeting suggested “a further pickup in eco nom ic growth in recent months.” The forecast presented by the staff suggested a marked 19 25 REVIEW MARCH/APRIL 1995 D avid C. W heelock is a sen ior econom ist at the Fed eral R e se rv e B a n k of St. Louis. H eidi L. B ey e r provided research assistan ce. ■ R egulation, M a rk e t Structure, and the Bank Failures of the G re a t Depression em pirical study o f the effects o f banking m arket structure and regulation on failures during this period, a gap w hich this article attem pts to fill. Previous studies have taken little notice o f the wide interstate variation in the num ber o f failures and failure rates during the Great Depression. This article investigates whether this variation can be explained solely by dif ferences in the exten t to w h ich incom e declined, or w hether various state banking policies or differences in m arket structure contributed to interstate variation in failure rates. It also investigates why banking market structures differed across states. The analysis indicates that, after controlling for the extent to w h ich econom ic activity declined, the proportion o f deposits in failed banks was low er in states where branch banking was more prevalent. In addition, both the bank failure rate and proportion o f deposits in failed banks varied inversely w ith the relative num ber o f federally chartered (national) banks in a state. Finally, the study shows that the state deposit insurance system s of the 1 9 2 0 s had lingering effects on banking m arket structures even after insurance had ended. Thus, as researchers have found for the 19 8 0 s, governm ent policies, such as branching restrictions and deposit insurance, appear to have had m easurable im pacts on m arket outcom es and bank failures during the Great Depression. D avid C. W heelock he surge o f bank failures in the United States during the 1980s focused the atten tion o f policym akers and researchers on the causes o f failure, especially on the role o f governm ent policy. D eposit insurance had left the banking industry m ore leveraged than it would otherw ise have been, and encouraged individual banks to take greater risks as losses eroded their n et worth. In response, regulators im posed risk-adjusted capital requirem ents and Congress enacted the Federal D eposit Insurance Corporation Im provement Act o f 1991 (FD IC IA ), w hich mandated risk-based deposit insurance premium s and refined the risk-based capital standards.1 Similarly, the enactm ent o f The Interstate Banking and Branching Efficiency A ct o f 1 9 9 4 , w hich perm itted interstate branching, stem m ed from the view that branching restrictions ham per geographic diversification and had contributed to the high num ber o f failures in regions suffering econom ic downturns. The United States last experienced high num bers o f bank failures during the Great Depression, w hen som e 9 ,0 0 0 banks failed. Researchers have blamed various governm ent policies, especially branching restrictions, for contributing to banking instability during the D epression. There has, however, b een little T BANK FAILURES IN THE DEPRESSION: CAUSES AND CONSEQUENCES From 1 9 2 9 to 1 9 3 3 , U .S. gross national product declined 2 9 percent (in constant d ollars), the price level fell 2 5 percent, the unem ploym ent rate reached 25 percent, and som e 9 ,0 0 0 banks suspended operations because o f financial distress. A bank that suspended operations need not have “failed,” in that a receiver need not have been appointed to liquidate the bank. Suspended banks, however, include only those that closed on 27 1 FDICIA also limited the discretion of regulators to permit insolvent banks from continuing to operate. Some researchers argue that the closure policy known as "too-big-to-fair hod encouraged excessive risk-taking because it had the effect of expand ing deposit insurance coverage beyond $100,000 per account at banks that regulators deemed too large to close. See Keeley (1990) for further analysis of the role of deposit insurance during the 1980s. REVIEW MARCH / APRIL accou nt o f financial difficulty. Follow ing m uch o f the literature, I use the term s “sus pension” and “failure” interchangeably. E conom ists have debated the causes of the D epression since the 1930s. In the past 3 0 years, this debate has focused on the role o f bank failures. In Monetary History o f the United States, Friedm an and Schw artz (1 9 6 3 ) argue that banking panics in the autum n o f 1 9 3 0 , and the spring and autum n o f 1931 sharply reduced the supply o f money, w hich, in turn, caused econom ic activity to decline. O ther researchers, however, such as Temin (1 9 7 6 ), contend that bank failures occurred largely as a result o f falling national incom e. In Temin’s view, the econom ic dow nturn reduced the dem and for money, and bank failures were the m eans by w hich the m oney supply fell to accom m odate that decline. T h e debate over the role o f bank failures and m onetary forces in causing the Great D epression continues to sim mer, and is reviewed by W h eelock (1 9 9 2 b ). A recent view, originating w ith Bernanke (1 9 8 3 ), pro poses a non-m onetary explanation o f how bank failures contributed to the Depression. Bernanke argues that apart from their im pact on the m oney supply, bank failures depressed output by raising the cost o f credit interm e diation. M uch o f the research on the causes and consequences o f bank failures during the Depression has had a m acroeconom ic orien tation, w ith little em phasis on the role o f reg ulation or m arket structure. Some researchers, however, have argued that the prevalence o f un it banking left the U.S. banking system especially vulnerable to failures during the Depression, and that nationw ide branching helped lim it failures and banking panics in other countries. F o r exam ple, the conventional view is that nationwide branching protected the Canadian banking system during the Depression (for lations or m arket structure contributed to interstate differences in b ank failure rates. Regional variation in failures has largely been ignored or sim ply attributed to differences in the extent to w hich incom e declined. Several studies have attem pted to determine whether the causes o f bank failures during the D epression were like those o f fail ures during the 1920s. F o r exam ple, Temin (1 9 7 6 ) finds that, like the 1 9 2 0 s, declining agricultural incom e explains m any o f the failures o f 1 9 3 0 and 1931. W h ite (1 9 8 4 ) shows that the characteristics o f banks that failed in 1 9 3 0 were like those o f previous failures. Calomiris and M ason (1 9 9 4 ) present similar findings for failures during the Chicago banking panic o f Ju n e 1 9 3 2 . On the other hand, W ick er (1 9 8 0 ) show s that m any fail ures in 1 9 3 0 stem m ed from the collapse of one Southern financial institu tion, Caldwell and Company, w hich he concludes was largely independent o f the decline in econom ic activity. Stauffer (1 9 8 1 ) offers further evidence that bank failures were independent o f the decline in activity by show ing that in the 11 cotton-producing states w ith significant declines in output, bank failures were m ore closely related to banking m arket structure than to changes in local incom e. W h eth er this was also true o f other states, however, is unclear. INTERSTATE VARIATION IN BANK FAILURES AND FAILURE RATES This article investigates the interstate vari ation in bank failures during 1 9 2 9 -3 2 . The failures o f 1 9 3 3 are not studied here because the bank holiday in March 1 9 3 3 , and subse quent institutional changes, substantially altered the timing and likely causes of failures. All banks were shut during the bank holiday, and only those licensed by regulators were permitted to reopen. Not all banks that would reopen had done so by the end o f 1 9 3 3 , and some that did were later found to be insolvent. exam ple, see W hite, 1 9 8 4 ; or Grossm an, 1994), though Kryznowski and Roberts (1 9 9 3 ) estim ate that on a m arket value basis, all Canadian banks were insolvent at som e point during the Depression. T his focus on branching vs. unit banking has been national, with little consideration of whether differences in state branching laws, other banking regu 1993 T his suggests that the determ inants o f bank failures in 1933 should be studied apart from those o f other Depression years. Similarly, I leave for future research the causes o f failures during the rem ainder o f the 1930s. 28 REVIEW MARCH/APRIL Figure 1 shows the distribution of bank failures across the United States during 1929-32 (see the appendix for data sources). Rhode Island escaped the period w ithout any bank failures. No other state had fewer than two failures. O ther states with fewer than 10 bank failures include Vermont, M aine, New Hamp shire, Delaware, New M exico and W yom ing. Generally, M idwestern states suffered the highest numbers o f bank failures. Illinois had 6 02 failures, the m ost of any state. Only three other states had more than 3 0 0 failures: Iowa with 4 7 6 , Nebraska w ith 3 5 8 and M issouri with 328. The mean number of failures across all states was 120, and the m edian was 91 failures. For com parison, from 1980 to 1989, the two states with the most bank failures were Texas w ith 3 5 0 and O klahom a w ith 105. The num ber of failures can, o f course, be a m isleading statistic because the num ber of banks varies widely across states. Figure 2 maps the distribution o f bank failure rates during 1 9 2 9 -3 2 , in w hich the annual failure rate is defined as the total num ber o f suspen sions during a year divided by the num ber of banks operating at mid-year. Even though Illinois had the m ost failures, it did n ot have the highest failure rate. That dubious dis tinction w ent to Nevada, w hich had a yearly average failure rate o f more than 16 percent, despite having ju s t 19 bank failures during the period. Illinois, other M idwestern and Southern states w ith high num bers o f bank failures, however, generally also had high failure rates. Besides Nevada, other states with high failure rates included South Carolina, Florida and Arkansas, each w ith a rate of 15 percent. At the other extrem e, five New England states, plus New M exico, W yom ing, New York, M assachusetts and New Jersey, all had failure rates under 3 percent. The mean failure rate am ong all states was 6 .6 percent, while the m edian was 5 .5 percent. F or com parison, betw een 1 9 8 0 and 1 9 8 9 , the average annual bank failure rate in the United States was 0 .7 7 percent. Eight states had no failures during the period, while Alaska, Oregon and Texas had failure rates o f 6.3 percent, 2 .4 per cent and 2.3 percent, respectively, the m ost o f any states. Figure 3 maps the average annual rate of deposits in failed banks during 1929-32, where 1995 F ig u r e 1 Number of Bank Suspensions, 1 9 2 9 - 3 2 Bank Suspensions P er A ctive B an k , 1 9 2 9 -3 2 the annual rate o f deposits in failed banks is the sum o f deposits in failed banks during a year divided by the volum e o f deposits in all banks at mid-year. A state could have had a low num ber o f bank failures, or a low failure rate, but a high rate o f deposits in failed banks if those banks that did fail held a high share o f the state’s bank deposits. On the other hand, a high num ber o f failures, or a high failure rate, did n ot necessarily produce a high rate o f deposits in failed banks if failing banks held a com paratively low share o f a state’s deposits. Moreover, there is no reason to expect that the determ inants o f the bank failure rate and rate o f deposits in failed banks will be the same. During 1 9 2 9 -3 2 , the rate o f deposits in failed banks and the bank failure rate were highly correlated (a correlation coefficient FEDERAL RESERVE B A N K OF ST. L O U I S 29 REVIEW MARCH/APRIL able to expect that failure rates were higher in states suffering the largest incom e declines. Conceivably, incom e fell m ore in som e states because o f a high rate o f b ank failures. Some researchers argue that banking panics triggered the decline in national incom e, while others contend that bank failures merely reflected falling incom e caused by other forces. Ideally, an econom etric analysis of the determ inants o f b ank failure would treat the change in incom e as sim ultaneously determ ined w ith bank failures. The specifi cation o f such a system in this con text pre sents a num ber o f challenges and is therefore left to future research. Am ong the difficulties is a lack of suitable variables to serve as instru ments for state-level changes in per capita incom e. For exam ple, state incom e estim ates prior to 1 9 2 9 are not available. Readers are cautioned that the models presented here may be su b ject to sim ultaneous-equations bias. As in the 1920s, the m ajority o f banks that failed during the D epression were small rural banks whose prosperity depended largely on agriculture. A lston, Grove and W heelock (1 9 9 4 ) show that differences in farm foreclo sure rates explain m uch o f the interstate vari ation in bank failure rates during 1926-29. O ther studies, including Friedm an and Schwartz (1 9 6 3 ) and Temin (1 9 7 6 ), note a relationship betw een agricultural distress and bank failures in the 1930s, bu t do n ot exam ine w hether falling agricultural incom e dom inates other possible explanations o f failures. An exception is Stauffer (1 9 8 1 ), but he focuses exclusively on 11 Southern states. M oreover, even though falling agricultural incom e m ight explain a high num ber o f bank failures during the D epression, because the rural banks that failed in such large num bers were typically quite small, agricultural distress m ight not explain the proportion o f deposits in failed banks. / Apart from the severity o f agricultural distress, the preponderance o f failures among very small banks suggests that bank size itself, or som e other characteristic o f sm all banks, might explain their relatively high failure rate. T he failure rate in 1 9 3 0 -3 1 o f national and state-chartered banks was inversely correlated w ith bank size, declining from 25 percent of active banks on Ju n e 3 0 , 1930, for banks with F ig u r e 3 Deposits in Suspended B anks Per D ollar of Deposits in Active B an ks, 1 9 2 9 - 3 2 1995 o f 0 .8 5 ) and Nevada again had the highest rate o f deposits in failed banks at 16 percent. Still, com parison o f Figures 2 and 3 reveals that n ot all states w ith high bank failure rates also had high rates of deposits in failed banks, and that some states with relatively low failure rates had high rates of deposits in failed banks. C onnecticut, for example, had a relatively low bank failure rate (3 .6 percent), but a relatively high rate o f deposits in failed banks (3 .9 per cent). O n the other hand, Georgia had a high failure rate (8 .0 percent), but a com paratively low rate o f deposits in failed banks (1 .6 per cent) because m ost o f the banks that failed in Georgia were quite small. Besides Nevada, other states with high rates o f deposits in failed banks included South Carolina, Florida, North C arolina, Iowa, M ississippi and Arkansas, all w ith rates above 7 percent. States w ith low rates o f deposits in failed banks include those in the N ortheast, California and scattered others. T he m ean rate across all states was 3 .4 percent, while the median was 2.1 percent. W hat explains interstate differences in bank failure rates and in the rate of deposits in failed banks? One hypothesis is that banking distress was more severe in regions suffering the largest declines in econom ic activity because banks in those regions likely experi enced the largest losses on their loans and other assets. The extent to w hich per capita income fell during 1929-32 ranged from 3 2 per cent in M assachusetts to 5 6 percent in M ississippi (b oth the m ean and median declines were 4 4 percent). It seem s reason 30 REVIEW MARCH/APRIL in California, w ith som e 3 0 0 belonging to the Bank o f Italy (the forerunner o f Bank of A m erica). California had nearly twice as many branch offices as it had banks. Rhode Island was the only other state having more branches than banks.2 If the opportunity to branch afforded banks greater diversification, or perm itted them to operate at a m ore effi cient scale, states that allowed branching m ight have had lower bank failure rates.3 A second policy that could have affected bank failure rates is deposit insurance. Eight states — Kansas, Mississippi, Nebraska, North D akota, O klahom a, South D akota, Texas and W ashington — enacted insurance systems for their state-chartered banks follow ing the “Panic of 1 9 0 7 .” In each system , insurance prem ium s were low and unrelated to failure risk, thereby creating a subsidy that appears to have caused more bank entry and greater risk-taking than would have otherwise occurred (see Calomiris, 1989, 1992; and W heelock, 1992a, 1 9 9 3 ). Banks proliferated throughout the United States in the two decades before 1920. In 1 9 0 0 , the U nited States had 1 2 ,4 2 7 banks. By 1 9 2 0 , the num ber had reached 3 0 ,2 9 1 , thanks in part to rapid growth in agricultural states during the com m odity price boom of W orld W ar I (Board o f G overnors, 19 5 9 ). T he num ber o f banks increased particularly fast in states w ith deposit insurance systems, such as N orth Dakota, w hich by 1 9 2 0 had one bank for every 7 2 0 persons, the m ost o f any state. The wartime boom cam e to an end in 1920. Commodity prices collapsed, triggering widespread bank failures in rural areas. Sub sequently, states w ith the highest num bers of banks per capita in 1 9 2 0 suffered the highest failure rates, and members o f state insurance systems had higher failure rates than uninsured banks. By 1929, each of the state insurance system s was either insolvent or closed by state authorities. Because none o f the systems carried a state guaranty, depositors, rather than taxpayers, suffered losses if insurance premiums were inadequate. An exception was Mississippi, where the state assumed the oblig ations o f its insurance system and issued bonds to reimburse depositors of failed banks. Further detail about the state insurance system s can fewer than $15 0 ,0 0 0 o f loans and investments, to 2 percent for banks with at least $ 5 0 m illion o f loans and investm ents (Federal Reserve Board, non-dated publication, p. 6 7 ). If small banks were less diversified than large banks, either geographically or along product lines, they m ight have been more vulnerable to a dow nturn in a given m arket. F or exam ple, W hite (1 9 8 6 ) argues that their greater involve ment in the securities business m ight have left large banks better diversified and, hence, less likely to fail than small banks. Accordingly, a predom inance o f sm all, undiversified unit banks might explain the generally higher bank failure rates o f the rural Midwest and South. A lack o f diversification might not explain entirely why the failure rate o f small banks exceeded that o f large banks. Typically, small banks had state charters and the failure rate of state-chartered banks during the Depression exceeded that o f national banks. In 1929, the failure rates o f national and state banks were 0.8 and 3.4 percent, respectively; in 1930, they were 2.2 and 7.1 percent; in 1931, 6.0 and 12.1 percent; and in 1932, 4 .5 and 8 .7 percent (Bremer, 1935, p. 4 6 ). D ifferences in regula tion or supervision might explain the relatively high failure rate of state-chartered banks and, hence, of small banks. F or exam ple, in most states, national banks had higher m inim um capital requirem ents and were su b ject to greater restrictions on real estate lending than state-chartered institutions. Apart from differences in the regulation or supervision o f national and state banks, other state banking policies might have affected state banking markets or failure rates. Branch banking restrictions, for example, can hamper diversification and, to the extent that the timing or magnitude o f a decline in econom ic activity varies geographically, a bank with m ultiple offices m ight be able to offset losses in one region with profits in another. Although unit banking predominated in the United States in the 1930s, several states perm itted at least limited branching w ithin their borders. In 1930, nine states, including Arizona, California and North Carolina, permitted state-wide branching, and 12 others perm itted limited branching. Banks in 18 states had no branches at all. As of Ju n e 1930, U.S. commercial banks operated 3 ,6 1 8 branches. O f these, 8 5 3 were 19 NK o r ST. LOUIS 31 2 Aggregate data on branch bonking ore from the Federal Reserve Board (December, 1930, p. 8 12 ). The data for the Bank of Italy are from Tippetts (1929, p. 335) and are for 192/. 3 Although not common at Hie time, multiple-bank holding companies olso could have provided some geo graphic diversification. This article, however, does not investigate whether holding componies affect ed state failure rates. REVIEW MARCH/APRIL be found in Federal D eposit Insurance Corporation (1 9 5 6 ) or Calom iris (1 9 8 9 ). Although states w ith deposit insurance systems had high num bers o f bank failures during the 1920s, they still had significantly m ore banks per capita in 1929 than other states. Generally, the m ore banks per capita a state had in 1929, the higher its bank failure rate during 1 9 2 9 -3 2 . (T h e correlation coeffi cient is 0 .3 3 , w hich is significant at the 0 .0 5 level). Thus, by affecting the number o f banks per capita or other aspects of market structure, or if banks that had been m em bers o f state deposit insurance system s continued to hold riskier portfolios, deposit insurance could have contributed to bank failures during the Great Depression. 1995 caused more entry and encouraged greater risk-taking than would have otherw ise occurred and, hence, the banking system s of states w ith insurance m ight have been m ore vulnerable to a decline in econom ic activity. In other words, failure rates m ight have been higher because deposit insurance generated m ore banks than were econom ically viable once insurance had ended, or because banks that had been insured continued to hold especially risky portfolios. Apart from its im pact on the num ber of banks per capita, the collapse o f state deposit insurance systems in the 1920s caused declines in the num ber o f state-chartered banks rela tive to the number o f national banks. In 1908, the Com ptroller o f the Currency ruled that national banks could not jo in state deposit insurance systems. This led to a relative increase in the num ber and deposit shares o f state-chartered banks in the states enacting insurance system s. The decade-long shake out o f rural banks that followed the collapse o f com m odity prices in 1 9 2 0 reduced the number of state banks. More than 5,700 banks failed in the ’20s, and Alston, Grove and W heelock (1 9 9 4 ) show that rural failure rates were higher in states w ith deposit insurance system s, after controlling for the extent of agricultural distress. Moreover, W h eelock (1 9 9 3 ) finds that the demise o f deposit insur ance caused especially large declines in the relative num ber of state-chartered banks, both because the rate o f failure am ong insured state banks was high and because many state banks sw itched to national charters to escape state insurance system s. These effects were especially large in states where the insurance systems collapsed (o r were closed by state authorities) early in the decade. F or this reason, the im pact o f deposit insurance on market structure, and hence on failures during the 19 3 0 s, m ight differ in states where insur ance ended early in the ’2 0 s from its im pact in other insurance states. Therefore, I include one dumm y variable, set equal to 1 in states in w hich insurance lasted to either 1 9 2 8 or 1 9 2 9 (M ississippi, N orth D akota and N ebraska), and to zero otherw ise. I set a second dumm y equal to 1 in states in w hich insurance ended by the m id -1 9 2 0 s (Kansas, O klahom a, South Dakota and Texas), and to INTERSTATE VARIATION IN FAILURE RATES: TESTING THE HYPOTHESES The m ain objective o f this article is to discern w hether differences in state banking policies contributed to interstate variation in failure rates during the Great Depression. Accordingly, in m odeling the determ inants of b ank failure rates during 1 9 2 9 - 3 2 ,1 control for cross-state differences in the level o f eco nom ic distress by including the percentage change in per capita incom e, and the average annual farm and business failure rates as inde pendent variables. I expect that the more per capita incom e fell and the higher the rates of farm and business failures, the higher were state bank failure rates and rates o f deposits in failed banks. To test w hether w ithin-state branching helped to lim it failures, perhaps by enabling greater diversification or scale, I include the ratio o f branches to operating banks in 1930 as another independent variable. I expect that failure rates and the rate o f deposits in failed banks were low er where branching was m ore prevalent. N ext, I include dummy variables reflecting w hether a state had a deposit insurance system during the 1920s. By affecting a state’s banking m arket structure, deposit insurance could have had an im pact on failure rates during the 1930s even though insurance no longer existed. Deposit insurance 32 REVIEW m a r c h /A pril 1995 Table 1 D eterm inants of In terstate V a ria tio n in B an k F a ilu re R ates Dependent Variable: average failure rate, 1929-32, models 1-4; Dependent Variable: log of the ratio of deposits to failed banks, 1929-32, models 5-8 (1) Intercept (1 .8 3 )* A Per capita income Farm failure rate Business failure rate (2) - 8 - 9 8. 8 2 .7 ( 1 .7 3 ) * (3) (4) - 7 .9 1 ( 1 .7 7 ) * - 5 .7 1 ( 0 .7 2 ) (5) 0 .1 6 (2 .6 3 ) * * - 0 .7 3 - 0 .1 5 (0 .5 2 ) (0 .1 1 ) Branching ratio (1 .3 3 ) Dl (MS, ND, NE) (1 .3 5 ) Dl (KS, OK, SD, TX) ( 2 .8 5 ) * * * 0 .1 6 (1 .8 7 )* 0.11 (1 .6 7 ) - 0 .0 3 (0 .0 3 ) - 0 .4 2 (0 .2 6 ) (7) - 4 .4 0 (1 .1 8 ) - 1 .9 1 (0 .5 3 ) - 1 .6 6 (0 .5 0 ) 0 .0 3 (1 .1 1 ) 0 .0 3 (1 .2 7 ) 0.01 (0 .3 3 ) -0 .0 0 4 (0 .1 6 ) 0 .2 8 (0 .7 1 ) 0 .3 4 (0 .8 7 ) 0 .3 4 (0 .9 5 ) 0.41 (1 .0 9 ) - 1 .-31 3. 7 3 (1 .0 2 ) -1 .0 0 (2 .2 1 ) * * 2.31 2 .3 0 (1 .3 7 ) - 0 .7 8 ( 1 .8 2 )* 0 .1 6 (0 .2 4 ) In Banks per capita 0 .1 3 (0 .2 1 ) -0 .3 8 (0 .6 5 ) - 2- 39. 6 1 . 9 (2 .2 4 ) * * 0 .0 6 (0 .1 0 ) - 1 .5 2 (1 .0 2 ) In National bank ratio - 2 .4 0 - 1 .5 0 (2 .1 1 ) * * (1 .3 8 ) In Average bank size - 0 .7 6 .85 .88 .8 6 .1.88 0 - 0 .0 9 (0 .2 3 ) - 1 .0 3 - 1 .0 0 ( 2 .7 6 ) * * * ( 2 .7 3 ) * * * (0 .8 5 ) Adjusted R2 (8) - 3 .4 7 - 7 .2 2 - 6 .5 4 - 6 .3 8 (4 .9 5 ) * * * ( 4 .1 4 ) * * * ( 4 .3 5 ) * * * ( 1 .2 3 ) - 2 3 .5 7 - 2 6 .9 3 - 2 4 .1 6 - 1 9 .9 2 - 5 .7 9 ( 2 .7 9 ) * * * (2 .4 7 ) * * ( 2 .0 3 ) * * (1 .7 3 )* (2 .4 1 ) * * 0.21 ( 3 .2 8 ) * * * (6) .1 5 - 0 .4 1 (1 .3 2 ) .27 Note: The coefficients of models 1-4 are multiplied by 100; absolute values of t-statistks are in parentheses; ***, * * and * indicate statistical signifi cance at the .01, .05 and .10 levels. The adjusted R! is presented for use in comparing alternative specifications but, because of the heteroscedasticity correction, does not indicate the proportion of the variation in the dependent variable explained by models 1-4. zero otherw ise. The insurance system s of these states had all ceased to function by 1926, though, in som e cases, did not officially close u n til a later date. A lthough W ashington had however, many o f W ashington’s state banks sw itched to federal charters. If deposit insurance left states w ith m ore banks than were econom ically viable, or with an insurance system , it collapsed after the failure o f the first, and largest, insured bank in 1921. Because of its short life, 1 treat W ashington as not having had insurance. Like other states where insurance ended early, banks having especially risky portfolios, the coefficients on one or b o th o f these dumm ies should be positive in the failure rate regres sions. On the other hand, if insurance caused the relative num ber o f banks w ith federal 33 .26 MARCH/APRIL 1995 from such m odels appear to be norm ally distributed, w hile those from m odels o f the D eterm inants of In terstate V ariatio n in level o f the rate o f deposits in failed banks B an k M a rk e t Structure do not. Because the value o f this variable for Dependent Variables: log of banks per capita (equation 1); Rhode Island is zero, I omitted this observation log of the ratio of national banks to all banks (equation 2); w hen estim ating the reported regressions. log of deposits per bank (equation 3) Assigning an arbitrarily sm all value to this (1) (2) (3) observation and re-estimating the models does not, 8however, substantially alter the results. Intercept - 1 .2 0 - 0 .2 4 9 .0 In (2 .2 9 ) ” (0 .4 6 ) ( 2 6 .2 2 ) * * * states with few banks, each bank failure has a larger im pact on the failure rate than in states w ith m any banks, w h ich could cause In Population density - 0 .1 2 - 0 . 00 .0 5 7 the errors o f the m odel to be larger in states (2 .5 3 ) * * (1 .5 4 ) (1 .6 1 ) w ith fewer banks. H ence, to correct for heteroscedasticity, each variable in the failure In Farm population 0 .0 6 - 0 .2 9 - 0 .6 7 ( 0 .5 5 ) ( 2 .6 1 ) * * * ( 9 rate* *models has been m ultiplied by the square .0 0 ) * root o f the average annual number o f operating Branching ratio - 0 . 7 7 0 .0 6 0 .8 2 banks. W eighting gives m ore im portance to those ( 4 .5 8 ) * * * (0 .3 8 ) ( 7 .3 3 ) ” *states, located m ainly in the M idwest and South, that had large num bers o f banks, and less to 1states w ith fewer banks (like those Dl (MS, ND, NE) 0 .4 5 - 0 .2 2 - 0 .3 in the W est and N ortheast). (0 .9 4 ) (1 .8 8 )* ( 1 .9 5 )* M odels 1 and 5 include only m easures o f econom ic activity as independent variables. Dl (KS, OK, SD, IX ) 0 .4 0 0 .3 3 - 0 .3 5 Th ) * (1 .9 3 )* (1 .6 2 ) (2 .5 4e *m ore per capita incom e fell during 1 9 2 9 -3 2 , the higher were both the failure rate and the rate o f deposits in failed banks. Minimum capital - 0 .0 0 3 7 - 0 .00.0003 Typically, states w ith large declines in per (0 .5 7 ) (1 .5 3 ) (0 .7 8 ) capita incom e also had relatively high farm Adjusted R2 .32 .91 failure rates, and the correlation coefficient .61 betw een these two variables is -0 .5 7 , w hich is significant at the 0 .0 1 level. Nevertheless, Note: Absolute values of t-statistics are in parentheses; * * * , * * and * indicate statisti in the bank failure rate m odel (m odel 1), the cal significance at the .0 1 , .0 5 and .1 0 levels. coefficient on the farm failure rate is positive and statistically significant, indicating th at a higher farm failure rate caused a higher b an k charters to be unusually high in these states, failure rate. T h e coefficients on the business and if differences in regulation or supervision failure rate, on the other hand, are never caused national banks to have low er failure statistically different from zero. rates than state-chartered banks, deposit insur Models 2 and 6 include the branch ance m ight have caused fewer Depression-era banking ratio and deposit insurance dummy bank failures. Conceivably, the coefficients variables as additional regressors. In both on the two insurance dum m ies could differ if m odels, the coefficient on the branching the effects o f insurance differed between states ratio indicates that bank failure rates were whose systems ended early and those in which low er where branching was m ore prevalent, 4 The branching ratio is positively cor insurance lasted until decade’s end. though only in m odel 6 is the coefficient related with both the percentage Table 1 reports regression estim ates in statistically significant.4 This suggests that, change in per capita income and which the average annual bank failure rate and w here perm itted, branching lowered bank business failure rote. If the latter is the log o f the average annual rate o f deposits failure rates. Perhaps this occurred because omitted, the coefficient on the in failed banks are the dependent variables. branching banks were b etter diversified, or branching ratio is larger ond statisti I estim ate m odels o f the log o f the rate of possibly because branching enabled banks to cally significant in the bank failure deposits in failed banks because the residuals rate regression. achieve econom ies o f scale. States w ith more Table 2 N K OF ST. L O U I S 34 REVIEW MARCH/APRIL collinearity m ight explain the absence o f a significant relationship betw een bank size, or the num ber o f banks per capita, and failure rates. The correlation coefficient betw een the logs o f the national bank ratio and average deposits per bank is 0 .4 9 , w hich is significant at the 0 .0 1 level, while that betw een the logs o f the national bank ratio and num ber of banks per capita is -0 .3 4 , w hich is significant at the 0 .0 2 level. T he correlation betw een the national bank ratio and bank size m akes it impossible to determine whether differences in regulation or supervision o f state and national banks had an im pact on failures, except as they m ight have influenced bank size. The absence of a significant relationship betw een bank size and failure rates, however, suggests that any influence size had on failures is reflected in the ratio o f national banks to all banks. The inclu sion o f banks per capita, the national bank ratio and average bank size in the bank failure rate m odel reduces the sta tistical significance o f the percentage change in per capita incom e and the farm failure rate. T he correlation coefficients betw een the m arket structure variables and the two m easures o f econom ic activity are all statisti cally significant at the 1 percent level. The states w ith the largest declines in per capita incom e and the highest farm failure rates also had the highest num bers o f banks per capita, the lowest national bank ratios and sm allest average bank sizes. Although the D epression affected the entire nation, rural farm ing regions were h it especially hard. Unfortunately, these states also tended to have banking m arkets consisting o f many sm all, undiversified banks. Thu s, it is diffi cu lt, if n ot im possible, to apportion the com paratively high bank failure rates of these states betw een changes in the level of econom ic activity and the vulnerability of their banking system s.' T h e evidence pre sented here, however, suggests that banking m arket structure affected the perform ance of state banking system s, and adds weight to other research associating banking distress and declining econom ic activity in the 1930s w ith banking system fragility (see Bernanke and Jam es, 1 9 9 1 ; Calom iris, 1 9 9 3 ; and Grossm an, 1 9 9 4 ). branching tended to have larger banks. The correlation coefficient betw een the branching ratio and the log o f deposits per bank is 0 .7 2 , w hich is significant at the 0 .0 1 level. The coefficients on the deposit insurance dummy variables in m odel 6 are n ot statisti cally different from zero. In model 2, however, the dumm y for states where insurance ended by the m id -1920s (Kansas, O klahom a, South Dakota and Texas) has a negative and signifi cant coefficient. In these states, the average annual bank failure rate was some 3 percentage points low er because o f deposit insurance. Apparently, deposit insurance affected market structure in a way that reduced failure rates. This m ight be explained by the comparatively large increase in the relative number of national banks, w hich had lower failure rates than state banks, in these states. M odels 3 and 7 test for this possibility by including the log o f the ratio o f national banks to total banks as an additional independent variable. D oing so reduces som ew hat the absolute size and sta tistical significance o f the deposit insurance coefficient. Insurance appears to have had no effect on the national bank ratio in states where insurance lasted at least until 1928. The coefficient on deposit insurance for these states is positive and fairly large (though not statistically significant), suggesting that insur ance affected bank failure rates in these states by causing excessive num bers of banks or risk-taking. M odels 4 and 8 further indicate how banking market structure affected bank failure rates during the Depression. I exclude branching and deposit insurance from these specifications because their effects on bank failures appear to have worked through their influence on market structure. Further analysis of the determ inants of m arket structure is pre sented in the n ext section. The m arket structure measures included in m odels 4 and 8 are the logs o f banks per capita in 1929, the ratio o f national to all banks in 1929, and the average volum e o f deposits per bank in 1929. O nly the coefficients on the ratio o f national to all banks is statistically significant. Its negative coefficients indicate that bank failure rates and rates o f deposits in failed banks were sm aller where national banks were relatively more prevalent. M ulti- 19 35 s Conceivably, income fell more and farm failure rates were higher in these states because their banking market structures were more vul nerable to bonk failures. As noted previously, the measures of eco nomic activity ideally would be treated os dependent variables in o simultoneous-equations framework to capture any impact of bank fail ures on economic activity. REVIEW MARCH/APRIL THE DETERMINANTS OF BANKING MARKET STRUCTURE 1995 T he same variables are included in a model o f the log o f the ratio o f the num ber of national banks to total banks. T he m ost im portant determ inant o f this ratio is the ratio o f farm to total state population: the greater the fraction o f the population in agri culture, the lower the relative num ber o f national banks. N ational banks were more prevalent in N ortheastern m anufacturing states and other states where agriculture was relatively unim portant. O n the one hand, this reflects the low er population density o f agricultural states, and that such states often set low m inim um capital requirem ents for their state-chartered banks to ensure the presence o f banking facilities in rural areas. Note that the coefficient on the m inim um capital ratio is positive and, for a one-tail test, statistically significant at the 0 .1 0 level. State-chartered banks also typically enjoyed fewer lending restrictions than national banks, especially on real estate loans. Consequently, state-chartered banks were able to serve more of the banking needs o f agricultural borrowers. In model 2, the coefficients on the two deposit insurance dum m y variables differ significantly from one another. The coefficient on the variable for states where deposit insurance ended early in the 1920s (Kansas, Oklahoma, South Dakota and Texas) is positive and, for a one-tail test, statistically significant at the 0 .1 0 level. The failure o f large num bers o f state banks, and the decision o f others to sw itch to national charters, explain why deposit insurance had a positive influence on the national bank ratio in these states. Insurance lasted longer, and generally per formed better, in M ississippi, N orth Dakota and N ebraska and, h ence, there was no effect o f insurance on the national bank ratio. Finally, the coefficient on the branching ratio is n ot statistically different from zero. U ntil the M cFadden A ct o f 1 9 2 7 enabled national banks to open branches, virtually all branching was done by state-chartered institutions. T h e ability to branch m ight have increased the dem and for state charters and, hence, all else equal, had a negative influence on the national bank ratio. On the other hand, it could have also held down state chartering because branch offices sub stituted for independent state banks. The evidence presented in the preceding section shows that government policies affected bank failure rates during the Depression, at least in part, by causing differences in banking market structure across states. Further insight into the effects o f governm ent policies on m arket outcom es can thus be gleaned from studying interstate variations in banking m arket structure. W h eelock (1 9 9 3 ) investigates the impact o f governm ent policies on banking m arket structure during the 1920s. There, I show that the num ber o f banks per capita was lower where bran ch banking was m ore prevalent, in states that im posed high m inim um capital requirem ents on state-chartered banks, and in states w ith deposit insurance system s. In addition, the num ber of banks per capita was lower in m ore densely populated states. The costs o f transportation and com m unication m ake the finding o f an inverse relationship betw een population density and the num ber o f banks per capita unsurprising. An inverse relationship between the prevalence o f branch ing and the number o f banks per capita is also n ot surprising. W here perm itted, branch offices can serve markets that otherwise would require independent banks. To the extent that branches substitute for unit banks, the number o f banks per capita will be lower. Finally, because deposit insurance subsidized entry, and was instituted only in unit banking states, it caused the number of banks per capita to be higher than it would otherw ise have been. M odel 1 o f Table 2 reports a regression o f the log o f banks per capita in 1 9 2 9 on the log of population density, the branching ratio, the deposit insurance dumm y variables, the log o f the ratio o f farm to total state popula tion, and the m inim um capital requirem ent imposed on state banks. Only the coefficients on the latter two variables are insignificant. As expected, the less densely populated a state was, the higher were banks per capita. In addition, in states where there were deposit insurance system s, or where branch banking was less prevalent, banks per capita were again higher. 36 REVIEW MARCH/APRIL distribution o f bank failures during the D epression was in part a function o f m arket structure and governm ent banking policies. Model 3 o f Table 2 is a regression of the log o f average deposits per bank in 1929. This variable is negatively correlated w ith the num ber o f banks per capita and positively correlated with the national bank ratio. Hence, the estim ates o f this model are unsurprising. Banks were larger in m ore densely populated states and where agriculture was less im por tant. Average bank size was also larger where branching was m ore prevalent. Apparently, branching enabled banks to achieve larger scale than they otherw ise would. Finally, states w hich had deposit insurance systems tended to have, on average, sm aller banks. These were uniform ly rural states that prohib ited branching. D eposit insurance provided a subsidy that, because of branching restrictions, led to the entry o f many small un it banks. The demise o f deposit insurance removed this subsidy and, at least in four states, con tributed to a shift toward m ore banks with federal charters. Despite this, the negative im pact o f insurance on average bank size apparently remained in 1929. REFERENCES Alston, Lee J ., Grove, W ayne A., and David C. Wheelock. "W hy Do Banks Fa il? Evidence from the 1 9 2 0 Explorations in Economic s ," History (October 1 9 9 4 ) , pp. 4 0 9 -3 1 . Bankers Encyclopedia Company.Polk's Bonkers Encyclopedia (March 1 9 2 9 ). Bernanke, Ben S . "Nonmonetary Effects of the Financial Crises in the Propagation of the Great Depression," American Economic Deview (June 1 9 8 3 ) , pp. 2 5 7 -7 6 . _ _ _ _ _ _ _ _ ,_ and Jam es, Harold. "The Gold Standard, Deflation, and Financial Crises in the Great Depression: An International Comparison," in Hubbard, R. Glenn, erf.. Financial Markets and Financial Crises. University of Chicago Press, 1 9 9 1 , pp. 3 3 -6 8 . Board of Governors of the Federal Reserve System . Banking and Monetary Statistics, 1 91 4-41 ( 1 9 4 3 ) . _________. All Bank Statistics, 1 8 9 6 -1 9 5 5 (1 9 5 9 ) . Bremer, C. D. American Bank Failures. Columbia University Press, 1 9 3 5 . Calomiris, Charles W. "Financial Factors in the Great Depression," Journal of Economic Perspectives (spring 1 9 9 3 ) , pp. 61-8 6 . CONCLUSION In response to the bank failures o f the Great D epression, Congress enacted federal deposit insurance, im posed new restrictions on the activities o f com m ercial banks, and m aintained a strict prohibition o f interstate branching. A lthough these policies appeared to work well for many years, their weaknesses were exposed in the 1980s, prompting reforms. Looking back, econom ic historians have demonstrated the destabilizing effects of deposit insurance and branch banking restrictions in the 1920s. This article illum inates how these policies affected banking m arket structure and, ultimately, state-level bank failure rates during the Depression. Even though state deposit insurance had ended by 1 9 2 9 , its effects lingered into the 1930s, causing both higher numbers o f banks per capita and higher ratios of national banks to total banks in states that earlier had insurance system s. At the sam e time, branching restrictions, where enforced, contributed to the sm all average size o f un it banks and to their higher rate of failure during the Depression. T hus, as others have show n for the 1980s, the geographic 19 _ _ _ _ _ _ _ _"Do 'Vulnerable' Economies Need Deposit Insurance? _ Lessons from U .S . Agriculture in the 1 9 2 0 s ," in Philip L. Brock, editor, If Texas Were Chile: A Primer on Banking Reform. Institute for Contemporary Studies, 1 9 9 2 , pp. 2 3 7 -3 1 4 . _ _ _ _ _ _ _ _ . _ "Deposit Insurance: Lessons from the Record," Federal Reserve Bank of ChicagoEconomic Perspectives (M ay/Ju n e 1 9 8 9 ) , pp. 10-30 . _ _ _ _ _ _ _ _ ,_ and Joseph R. M ason. “Contagion and Bonk Failures During the Great Depression: The June 1 9 3 2 Chicago Banking Panic," working paper, 1 9 9 4 . Department of Agriculture. "The Form Real Estate Situation, 1 9 3 0 - 3 1 ,” Bureau of Agricultural EconomicsCircular No. 209 ( 1 9 3 1 ) . _ _ _ _ _ _ _ _ . _ "The Form Real Estate Situation, 1 9 3 2 -3 3 ," Bureau of Agricultural EconomicsCircular No. 309 ( 1 9 3 3 ) . Department of Commerce, Bureau of the Census. Fifteenth Census of the United States, Population, vol. I ( 1 9 3 1 ) . _________. Fifteenth Census of the United States, Agriculture, volume IV ( 1 9 3 2 ) . _________. Statistical Abstract of the United States ( 1 9 3 0 , 1 9 3 1 , 1 9 3 2 ,1 9 3 3 ). _________. Personal Income By States Since 1929, A Supplement to the Survey of Current Business ( 1 9 5 6 ) . 37 Tippetts, Charles S . State Banks and the Federal Reserve System. D. Van Nostrand Co., 1 9 2 9 . Federal Deposit Insurance Corporation.Annual Report ( 1 9 5 6 ) . Federal Reserve Board. Bulletin (December 1 9 3 0 ). Wheelock, David C. "Government Policy and Banking M arket Structure in the 1 9 2 0 s , “ Journal of Economic History (Decem ber 1 9 9 3 ) , pp. 8 5 7 -7 9 . _ _ _ _ _ _ _ _. _ "Bank Suspensions in the United States, 1 8 9 2 -1 9 3 1 ," (not dated). Friedm an, Milton, and Anna 1. Schw artz. Monetary History of the A United States, 1867-1960. Princeton University Press, 1 9 6 3 . _ _ _ _ _ _ _ _ . _ "Deposit Insurance and Bank Failures: New Evidence from the 1 9 2 0 s ,"Economic Inquiry (July 1 9 9 2 ) , pp. 5 3 0 -4 3 . Grossman, Richard S . "The Shoe that Didn't Drop: Explaining Banking Stability During the Great Depression," Journal of Economic History (Septem ber 1 9 9 4 ) , pp. 6 5 4 -8 2 . _ _ _ _ _ _ _ _ . _ "Monetary Policy in the Great Depression: W hat the Fed Did, and W hy," thisReview (M arch/April 1 9 9 2 ) , pp. 3 -28. White, Eugene N. "Before the Glass-Steagall Act: An Analysis of the Investment Banking Activities of National Banks," Explorations in Economic History (January 1 9 8 6 ) , pp. 3 3 -5 5 . Keeley, Michael C. "Deposit Insurance, Risk, and M arket Power in Banking," American Economic Review (December 1 9 9 0 ) , pp. 1 1 8 3 -2 0 0 . _ _ _ _ _ _ _ _. _ "A Reinterpretation of the Banking Crisis of 1 9 3 0 ," Journal of Economic History (March 1 9 8 4 ) , pp. 1 1 9 -3 8 . Kryznowski, Lawrence, and Gordon S . Roberts. ''Canadian Banking Solvency, 1 9 2 2 -1 9 4 0 ," Journal of Money, Credit and Bonking (August 1 9 9 3 ) , pp. 3 6 1 -7 6 . Wicker, Elmus. "A Reconsideration of the Causes of the Banking Panic of 1 9 3 0 ,"Journal of Economic History (Septem ber 1 9 8 0 ) , pp. 5 7 1 -8 4 . Stauffer, Robert F. "The Bank Failures of 1 9 3 0 -3Journal of Money, 1 ," Credit and Banking (February 1 9 8 1 ) , pp. 1 0 9 -1 3 . Temin, Peter. Did Monetary Forces Cause the Great Depression? W. W. Norton, 1 9 7 6 . A p p e n d ix SOURCES FOR STATE-LEVEL DATA Bank failures and deposits in failed banks: Board of Governors ( 1 9 4 3 , pp. 2 8 4 -8 5 ). Farm population: Department of Commerce ( 1 9 3 2 , p. 4 0 ) . Minimum capital requirement for state banks: Bankers Encyclopedia Company (March 1 9 2 9 ) . Branch bank offices: Federal Reserve Board (December 1 9 3 0 , pp. 8 1 1 -1 2 ). Number of banks and bank deposits: Board of Governors ( 1 9 5 9 ) . Business failure rate: Department of Commerce, Statistical Abstract ( 1 9 3 0 , 1 9 3 1 , 1 9 3 2 , 1 9 3 3 ). Per capita personal income: Department of Commerce ( 1 9 5 6 , p. 1 4 2 ) . Population density: Department of Commerce ( 1 9 3 1 , p. 1 3 ) . Farm failure rate: Department of Agriculture ( 1 9 3 1 , 1 9 3 3 ) . 38 REVIEW MARCH/APRIL 1995 Michael Ulan is an economic analyst at the U.S. Department of State. William G. Dewald is director of research at the Federal Reserve Bank of St. Louis. Jam es B. Bullard is a senior economist at the Federal Reserve Bank of St. Louis. Jerram Betts provided research assistance. Any view s expressed in this article are those of the authors and not necessarily those of the U.S. Department of State, the Federal Reserve Bank of St. Louis or the Federal Reserve System. ■ U .S . Official Forecasts of G -7 Economies, 1 9 7 6 -9 0 (W E O ). The A dm inistration forecasts and their accuracy are reported along w ith a number o f alternative forecasts. The primary com parison is to projections made for the G -7 by the O rganization for E con o m ic Coop eration and Developm ent (O E C D ) and by D ata Resources Incorporated (D R I). F o r the U nited States only, we also com pare the Adm inistration forecasts to those made by the Blue Chip consensus and the U .S. Federal Reserve “G reenbook.”1 F o r each country and for the G -7 nations taken as a w hole, the outlooks are evaluated on the basis o f the differences between predictions and outcomes. T he predictions and outcom es are expressed in terms of year-over-year percentage changes. T he statistics cited are the sum o f squared errors, the m ean squared errors, the root mean squared errors (RM SE) and the bias (sum of prediction m inus outcom e). W e th in k these measures provide simple but effective summary statistics useful in evaluating forecast accuracy. M ichael U lan, W illiam G . Dewald and Jam es B. Bullard orecasts are regularly used in making fiscal and m onetary policy decisions. F or many decisionmakers, the likely short-term effect o f a proposed action is a m ajor concern in deciding whether to im plem ent a particular policy. Such decisions are typically made in the context o f considerable uncertainty, not only about what the likely effects o f a partic ular action m ight be, but also about the m om entum and direction o f aggregate eco nom ic variables in them selves. T hus, an im portant concern from a policy point o f view is the exten t to w hich forecasts are reli able representations o f econom ic outcom es at relatively short horizons, such as a year. The purpose o f this article is to report facts concerning the accuracy o f the U.S. official forecasts o f real output growth and inflation from 1976 to 1990 for the Group of Seven (G -7 ) econom ies: Canada, France, Italy, Jap an , the U nited Kingdom , the U nited States and W est Germany. Though widely distributed w ithin the governm ent, the A dm inistration forecasts had been classified and n ot available to the public. W e obtained the forecasts for years through 1 9 9 0 under a Freedom o f Inform ation Act request with the helpful cooperation o f the Treasury Departm ent. T h e accuracy o f these forecasts is m ea sured against the standard of actual real output growth and inflation as subsequently published in the Treasury’s W orld Econ om ic O utlook F THE ADMINISTRATION FORECASTS Administration Forecasts of Real Output Growth The errors in the Administration forecasts o f real gross national product (G N P) (gross domestic product, GDP, in some cases) growth in the G -7 nations are shown in Figure 1. The sum m ary statistics relating to the errors in these forecasts appear in Table 1. The sum o f squared errors o f the A dm inistration’s real output growth forecasts is largest for Canada, the U nited States and W est Germany. Ju st under h alf o f the forecast errors were o f a dif ferent sign from the errors o f the preceding year. The num ber o f sign reversals o f forecast error, n o t counting a zero error as a sign change, ranged from four for Ja p a n to eight for the U nited States. Like the other forecasters, the Adm inis tration sim ply missed the deep recessions in 1 9 8 2 in the United States and Canada. The A dm inistration forecasted 3 .4 percent real 39 1 The Blue Chip Economic Indicators newsletter is published monthly and surveys major forecasters of the U.S. economy. The Federal Reserve "Greenbook" is a document distributed to top-level staff and Federal Open Market Committee (FOMC) members shortly before each FOMC meeting. The FOMC is the primary policymaking arm of the Federal Reserve. Greenbook infor mation is classified for five years following each FOMC meeting. Fig u re 1 A d m in istratio n Fo recast E rro rs, R e a l Output G row th Percentage Points 6 - 4 - 2 - M jy u lg 0 -2 1 1 •41978 1976 1982 1980 1984 H U.K. U.S. lsr v r J Japan KSSSS1 W.Gernt Canada I I I France 1988 1990 I Italy output growth for the United States in 1982 and 3 .2 percent for Canada. The outcom e was a 1.9 percent decrease in output in the U nited States and a 4 .4 percent decrease in Canada, one o f the deepest recessions in either country sin ce the end o f W orld W ar II. In absolute term s, the 1 9 8 2 forecast errors for U.S. and Canadian econom ic growth were tw o-to-three tim es as large as any for a non-N orth Am erican G -7 econom y over the 15 years covered here, as all o f the largest absolute forecast errors were betw een 2 per centage points and 3 percentage points for the rem aining countries. W h ile output fell in som e other G -7 econom ies in 1 9 8 2 , other nations did not experience a comparable reversal o f fortunes. There were, however, som e large declines in real output growth in other countries in other years. Italy, for instance, experienced a 4 .2 percentage p oint fall in its output growth rate (from 4 .0 percent to -0 .2 percent) between Table 1 Descriptive Statistics, Errors in A dm inistration Forecasts of R eal GNP/GDP G row th, 1 9 7 6 - 9 0 C o u n try United States Canada Japan France West G erm any Italy United Kingdom G-7 total Sum o f M ean S q u ared S q u a red E rro rs E rro r 4 7 .6 3 RM SE 3 .1 1.78 8 B ia s 11.1 92.21 6 .1 5 2 .4 8 7 .7 21.954 9 .2 1 .4 0 - 1 .2 1 5 .7 9 1.05- 0 . 7 1 .03 3 9 .2 5 2 .6 2 1 .6 2 - 2 .7 27.91 1.86 1.36 - 2 .3 2 1 .6 7 1.450 1 .2 1.5 2 7 3 .7 0 2.61 1.61 13.4 growth in Italy and the U nited Kingdom was larger in non -tu rnin g-point years than during these turning-point episodes. In the case of Italy, the largest error was for 1 9 7 6 , w hen the nation’s econom y experienced a substantial upturn. In that year, the change in direction 1 9 8 0 and 1 9 8 1 , and the U nited Kingdom witnessed a 4 .3 percentage point decline (from 1.5 percent to -2 .8 percent) betw een 1 9 7 9 and 1 9 8 0 . A dm inistration forecasts in these instances, however, were n ot so wide off the m ark as for the U.S. and Canadian forecasts for 1 9 8 2 . Moreover, the error in the A dm inistration’s forecasts o f real output 1986 of the Italian economy (a total of 9.3 percentage points— from a decline o f 3 .7 percent in 1975 to output growth o f 5 .6 percent in 1 9 7 6 ) was actually greater than the percentage point changes in the direction o f real output growth in the U .S. and Canadian econom ies in 1 9 8 2 , 40 MARCH/APRIL 1995 Figu re 2 A d m inistration Fo recast Erro rs, Inflation Percentage Points U.S. F 7 s \ Japan Canada I I France W.Germ I I I U.K. I Italy than the consum er price index (C P I). H ence, for this year the forecast error is cal Descriptive Statistics, Errors in culated w ith respect to the change in that Adm inistration Forecasts of m easure rather than the CPI. The sum of Inflation, 1 9 7 6 - 9 0 squared errors is largest for Italy and the U nited Kingdom. T he large error in the fore Mean Sum of cast o f United Kingdom inflation in 1 9 7 8 is Squared Squared Country Errors Error RMSE Bias attributable prim arily to a decline in inflation in that year; inflation fell from 1 5 .8 percent United States 4 0 .1 9 .6 8 1.64 2 - 2 .1 in 1977 to 8.3 percent in 1978. It subsequendy Canada 3 2 .2 7 3 .9 - 2 .1 1.51 rebounded to 1 3 .4 percent in 1 9 7 9 . During Japan 22.81 1.23 1 .5 2 1 0.9 1 9 7 8 , there were price controls in force on France 5 5 .4 6 3 .7 0 1.92 0 .0 som e com ponents o f the CPI m arket basket 2.8 West Germ any 18.7 0 11.25 .12 and, at governm ent urging, unions moderat Italy 1 74 .65 11.6-4 2 0 . 3 3.41 ed their wage demands. In 1979, with the United Kingdom 103 .25 6 .8 8 2 .6 2 - 9 .5 election o f a Conservative governm ent, the G-7 total 4 4 9 .0 3 4 .2 8 2 .0 7 unions 3returned to no-holds-barred wage -2 0 . bargaining, and the governm ent n o t only removed price controls b u t also increased the but the error in the Administration forecast rate o f value-added tax applicable to several o f Italian real GDP growth in 1976 was only item s in the CPI m arket basket, boosting -2.7 percentage points. inflation during that year. As Table 2 reveals, the A dm inistration Administration Inflation Forecasts tended to underpredict inflation in Italy and The Adm inistration forecast errors for the U nited Kingdom , countries w ith high inflation from 1976 to 1990 in the G -7 nations average inflation rates, and to overpredict are show n in Figure 2, while Table 2 presents inflation in W est Germ any and Japan , cou n the associated sum mary statistics. The tries w ith comparatively low inflation. Errors Adm inistration forecasts o f U.S. inflation in in one direction were followed by errors in 1 9 8 0 pertained to the GNP deflator rather the other direction about a third o f the time— 41 REVIEW MARCH/APRIL Table 3 less than was the case for real output growth. The number of reversals of sign of the forecast error ranged from three for Jap an and W est Germany to six for both France and the United Kingdom , again, not including a zero error as a change in sign. Descriptive Statistics, Errors in Forecasts of R eal Output Grow th by Country, 1 9 7 6 * 9 0 Country COMPARISONS WITH ALTERNATIVE PREDICTIONS United States Administration OECD Canada Administration OECD Administration Forecasts and OECD Projections, Real Output Growth, J976-90 2 Since the OECD uses the personol consumption deflator rather than the CPI as its measure of inflation, its inflation projections ore not con sidered here. 1995 Japan Administration OECD France Administration OECD West G erm any Administration OECD Italy Administration OECD T he O ECD ’s projections o f econom ic growth for G-7 nations between 1976 and 1990 are readily available for com parison w ith the A dm inistration predictions.2 T he O ECD staff issues its projections in the Economic Outlook twice each year— around mid-year and in December. W e compared the December OECD projections (prepared in mid-November) with A dm inistration forecasts, although the latter were generally made earlier. Sum m ary statis tics covering the A dm inistration’s predictions and O ECD projections over 1 9 7 6 -9 0 appear in Table 3. T he O ECD m akes several assum ptions about m em bers’ econom ies in projecting each nation’s econom ic growth. The organization assumes that the exchange rate of the nation’s currency during a year rem ains at the level of November in the previous year (the m onth the projections were prepared), that fiscal policy will rem ain unchanged and that the price of oil relative to that o f O ECD exports o f m anu factures will rem ain constant. T he reasoning behind these assum ptions is that the O ECD is “advising” its m em ber governm ents where they are headed econom ically if they continue to pursue current policies, n ot taking into account prospective changes in policies. Hence, the OECD considers its product a projection rather than a forecast. Table 3 shows that, for each G -7 nation except Italy, the sum o f squared errors o f the O ECD real growth p rojection is sm aller than that for the A dm inistration’s forecast errors. For both the OECD and the Administration, the smallest sum of squared errors was achieved in the case of France, while the country evidently posing the m ost difficulty over this period was United Kingdom Administration OECD G-7 total Administration OECD Sum of Mean Squared Squared Errors Error 4 7 .6 3 RMSE 3 .1 8 2 2 .5 3 1.231 .5 0 92.21 5 7 .4 0 6 .1 5 3 .8 3 2 9 .2 4 1 7.7 6 1.18 3 9 .2 5 2 7 3 .7 0 1 99 .72 1.351.82 1.62 - 5 .0 1.86 1.36 2 .6 9 1.64 1 .4 5 0 .7 - 2 .7 - 2 .3 - 1 0 .9 1.13 1.62 1.38 Canada. F o r the A dm inistration, the second w orst case was the U nited States. To what might one attribute the generally greater accuracy o f the O ECD projections compared w ith the Adm inistration’s forecasts? One factor m ight be that O ECD projections of real output growth in the G -7 nations were made closer to the beginning o f the forecast year. T he O ECD m ight also be in a better position to closely follow the econom ic per formance of many nations by evaluating world wide influences than is the A dm inistration, w hose forecasts are largely dependent on inputs from individual countries. O n the other hand, the O ECD procedure sim ply assumes unchanged fiscal policies, exchange rates and real oil prices. These might be fac tors that would lead to less accuracy in their p rojections to the extent that such factors have a predictable effect on real output growth. 42 - 6 .2 1.51 .2 0 1.27 2.61 1 .90 7 .7 2 .0 1 - 1 . 2 .4 0 1.09 2 .6 2 2 1 .6 7 18.9 9 11.1 2 .4 8 1.03 1.01 1.03 - 3 . 7 2 7 .2 9 27.91 4 0 .3 7 1.78 - 4 .0 1.96 1.95 15.7 9 1.05 15.3 9 Bias 13.4 - 3 5 .2 - 7 .4 RfKlfW MARCH/APRIL W ith one observation deleted, the sum of squared errors o f both the A dm inistration and O ECD forecasts tend to be m uch sm aller and m uch the same. O ur data set contained com plete DRI forecasts o f econom ic growth and inflation for all the G -7 countries for the period o f 1983 to 1 9 9 0 . T h e sum m ary statistics pertaining to these DRI forecasts are com pared w ith those o f the A dm inistration and the O ECD over the same period in Tables 5 and 6 . Save for the real growth forecasts for Italy, Japan and the U nited States, the DRI forecasts over this evaluation period were m ore accurate than either the Adm inistration forecasts or the O ECD projections. DRI was also m ore accu rate than the A dm inistration in forecasting inflation for every country except Jap an during this period. Descriptive Statistics, Errors in Forecasts of R eal Output Growth by Country, 1 9 7 6 - 9 0 (largest erro r omitted) Country Sum of Mean Squared Squared Errors Error RMSE United States Administration OECD Canada Administration OECD Bias 19.5 4 15.7 7 1.40 1.13 1.18 1.06 5.8 - 6 .6 3 4 .4 5 2 8 .2 4 2 .4 6 2 .0 8 1.58 1.42 0.1 - 3 .5 2 1 .9 5 1 2 .9 2 1.57 0 .9 2 1 .25 0 .9 6 1 .5 - 4 .0 Japan Administration OECD France Administration OECD West G erm any Administration OECD 11.7 9 10.5 5 0 .8 4 0 .7 5 0 .9 2 0 .8 8 1.3 - 1 .5 3 3 .0 0 2 1 .7 7 2 .3 6 1.56 1.54 1.25 - 0 .2 * Italy Administration OECD 2 0 .6 2 2 3 .5 6 1.47 1.68 1.21 1.30 0 .4 - 6 .8 17.2 6 1 3 .7 0 1.23 0 .9 8 1.11 0 .9 9 - 0 .6 -5 .1 158.61 1 2 6 .5 0 1.62 1.29 1.27 1.14 8 .3 ** United Kingdom Administration OECD G-7 total Administration OECD ADMINISTRATION, BLUE CHIP, DRI, FEDERAL RESERVE AND OECD PREDICTIONS FOR CANADA AND THE UNITED STATES, 1 9 7 7 -9 0 Real Output Growth T he Blue Chip E conom ic Indicators consensus forecast o f year-over-year real econom ic growth in the U nited States has been published monthly since 1976 (first fore casting 1 9 7 7 ). A consensus forecast o f the year-over-year change in the CPI has been published since 1 9 7 9 (forecasting 1 9 8 0 ). B oth the num ber and the identities o f partic ipating private-sector forecasters have changed over time. Though DRI, O ECD and Federal Reserve G reenbook forecasts for the United States are available for the full period for which we have A dm inistration forecasts, we only com pared the five forecasting records for the period for w hich the Blue Chip consensus has been available. As show n in Table 7, the Blue Chip, DRI, Federal Reserve and O ECD projec tions o f U.S. econom ic growth were each more accurate than the Administration forecasts over this period, with the OECD achieving the * Largest error is either -2.35 in 1976, implying a bios of -2.65, or 2.35 in 1982, implying a bias of -7.35. ** Bias is -30 if 1976 error is omitted, or -34.7 if 1982 error is omitted. Both the A dm inistration forecasts and the O ECD projections o f real growth display bias, according to our measure— bu t in opposite directions. T he A dm inistration’s real output growth forecasts in total are biased upward, w ith the m ain contributors to the total being the errors associated w ith the United States and Canada. In contrast, except for Canadian econ om ic growth, the O ECD projections are biased downward— substantially for the cases o f Italy and the U nited Kingdom. Since one large error can m ar an other wise good perform ance, we also exam ined the data w ith the largest error om itted; the descriptive statistics are presented in Table 4. 1 9 95 greatest overall accuracy. T he Adm inistration forecasts for Canadian real output growth 43 REVIEW MARCH/APRIL 1 9 Table 5 Table 6 Descriptive Statistics, Errors in Forecasts of R eal Output Growth by Country, 1 9 8 3 - 9 0 D escriptive Statistics, Errors in Forecasts of Inflation by Country, 1 9 8 3 - 9 0 Country United States Administration DRI OECD Canada Administration DRI OECD Japan Administration DRI OECD Sum of Mean Squared Squared Errors Error RMSE 1 5.4 8 Italy Administration DRI OECD United Kingdom Administration DRI OECD G-7 total Administration DRI OECD 2 .2 7 1 2 .9 6 1 1 .0 7 10.4 7 8 .8 2 1 .1 0 1.31 7 .2 5 10.4 4 0 6.31 .7 9 11.2 0 1.46 1.48 Administration DRI Japan 5 . 6 Administration DRI - 5 . 0 France 1.27 Administration 1.18 DRI4 . 5 1.06 0 .7 3 1.06 - 3 .9 0 .8 6 - 3 .3 1.68 1 .1 2 - 4 .5 1 .86 - 5 . 5 1.36 1 .0 5 1.14 0.91 1.31 1.8 0 .7 0 .9 5 West G erm any Administration DRI- 3 . 0 Italy Administration - 4 .DRI 8 United Kingdom Administration DRI G-7 total Administration 0 .2 DRI Bias 1 .6 3 1 .1 5 9 .4 8 1 .2 8 1.07 1.19 4.61 0 .9 0 1 2 .7 8 0 .7 6 2 .2 7 18 .7 7 .1 0 1.26 5 .3 1 .1 7 8 .8 9 1.08 1.11 3 .7 2 111.43 .4 6 3 .3 9 18.392 2 .2 1.84 1.51 7 3 .9 9 2 .0 4 1.43 1.15 1 .3 2 1.93 - 4 .4 - 2 .0 2 2.9 17.5 m onths into a recession that would not bottom - 1 6 .4 1.423 0 . 7 1.19 out for 14 months. The Greenbook and OECD 1 .6 0 1.27 forecasts, both o f which, it is im portant to add, - 2 4 .3 1.34 were made later in the year, were considerably better, predicting -0 .6 and -0 .5 , respectively, versus an actual outcom e o f -1.9. Table 8 show s the effects o f om itting the largest error in com puting the accuracy o f these forecasts. T h e errors in the A dm inis tration, Blue Chip, DRI, Federal Reserve and O ECD projections o f U .S. real output growth for 1 9 8 2 were 5 .3 , 4 .5 , 4 .3 , 1.3 and 1.4 per centage points, respectively. T h e largest Federal Reserve error was -2 .5 , recorded in 1 9 8 1 , while the largest O ECD error was 2.6, recorded in 1990. The largest errors in the A dm inistration, O ECD and DRI forecasts o f Canadian real output growth were 7 .6 ,5 .4 and vation for 1 9 8 2 greatly improves the accuracy o f the A dm inistration forecasts. In fact, the same observation accounted for the greatest error in the forecasts o f the Adm inistration, the Blue Chip consensus and DRI. In Septem ber 1 9 8 1 , m any forecasters predicted 44 5 .3 6 .8 3 .6 in 1 9 8 2 even though it was already several 1 01 .14 1.81 79.31 8 9 .5 7 5 .9 1.05 1 .2 0 114.11 - 0 .2 5 .51.51 1 .0 5 9 .3 3 2 .7 2 .50 .9 5 1.60 1 8 .1 5 2 7 .1 8 3 .6 1 .0 9 0 .5 8 7.21 2 9 .7 6 3 .0 2 .8 1.14 - 4 .8 0 .8 9- 5 . 1 1.40 - 5 . 1 1.83 positive econom ic growth for the U.S. economy were less accurate than those o f either DRI or the OECD. F o r U.S. econom ic growth, there was a “rosy scen ario” positive bias o f the Adm inis tration forecasts w hich was approached in m agnitude only by the negative bias o f the Federal Reserve forecasts. As noted in the previous section, the exclusion o f the obser 13.0 0 9 .1 6 - 3 .1 2 .0 7 1.44 1.53 - 4 .5 1.51 1 .62- 7 . 8 1.38 2 .8 2 United States Administration DRI 5 . 4 -1 Canada . 7 3 .4 8 .9 9 1 .12 5 .8 6 8 .9 2 1 .12 2 2 .5 4 10.0 7 1 .26 14.8 6 Country 2 .1 4 2 .1 9 16.5 6 2 .3 4 1 8 .7 4 1 8 .1 8 1 .39 2 1.44 .0 9 16.6 9 France Administration DRI OECD West Germ any Administration DRI OECD 1 .94 1 7.0 8 1 7 .5 3 Bias Sum of Mean Squared Squared Errors Error RMSE REVIEW MARCH/APRIL 1995 Table 7 Table 8 Descriptive Statistics, Errors in Forecasts of U .S. and Canadian R eal Output G row th, 1 9 7 7 - 9 0 Descriptive Statistics, Errors in Forecasts of U .S. and C anadian R eal Output G row th, 1 9 7 7 - 9 0 (larg est erro r omitted) Country Sum of Mean Squared Squared RMSE Errors Error United States Administration Blue Chip DRI Greenbook OECD Canada Administration DRI OECD Bias Country 3 .4 0 1.84 2 .3 0 2 .6 2 2 9 .2 9 2 .0 9 1.27 2 2 .4 7 1.61 4 7 .5 9 3 2 .1 3 3 6 .7 2 9 1 .4 0 6 8 .6 4 5 6 .9 8 10.9 4 .9 0 4 .0 7 8 .6 4 2.21.2 2 .6 2 .0 2 6.5 percentage points, respectively. W ith the largest error omitted, the Blue Chip consensus ranks first in accuracy for the United States. Bias 1 9.5 0 1.50 1.23 0 .9 4 8 - 2 .0 11.38 0 .8 .40 1.18- 4 . 9 1 8.2 3 2 3 .0 4 1 .7 7 1.33 - 2 .8 15.71 1.21 1.10 3 3 .6 4 2 .5 9 1.61 2 6 .3 9 1 .43 2 .0 3 2 7 .8 2 2 .1 4 1.0 - 2 .3 1.46 forecast the output decline in 1982. Deleting that observation substantially enhances mea sured forecast accuracy, reducing the RMSE from 1.78 to 1.18 over the 1976 to 1990 period. U.S. official forecasts were better w ith respect to inflation, as the A dm inistration was one o f the best among those compared in forecasting U.S. CPI inflation betw een 1 9 8 0 and 1990. The Administration’s forecasts o f economic growth for alm ost all G -7 countries were less accurate than the O ECD projections for the period 1 9 7 6 to 1990. T he biases in the Adm inistration’s forecasts tend to be positive; those in the forecasts o f U.S. and Canadian real output growth are particularly large. The biases in the O ECD projections tend to be negative; those associated with projections o f Italian and U.K. real output growth are large. F or the G -7 as a whole, the projections o f the O ECD are m uch m ore accurate than those o f the Adm inistration. Over the 1983 to 1 9 9 0 period, DRI was m ore accurate than either the A dm inistration or the O ECD for four o f the G -7 countries. The differences betw een the forecast errors o f the A dm inistration and the forecast (o r p rojection) errors o f the other forecasters may arise from differences in the tim es at w hich the forecasts or projections were pre pared, a situation that may have influenced the quality o f the historical baseline available to forecasters and the values o f exogenous Inflation As show n in Table 9, in contrast to the situation w ith respect to real output growth, the A dm inistration was a m arginally more accurate forecaster o f U.S. inflation over the period 1 9 8 0 -9 0 than the G reenbook and also more accurate than the Blue Chip survey. DRI was the m ost accurate overall for the United States, and DRI also predicted Canadian infla tion more accurately than the Administration. Sum mary statistics w ith the largest forecast error om itted are presented in Table 10. In this case, the Adm inistration forecasts hold up very well against those o f the other fore casters for the United States, as do D RI’s inflation forecasts for Canada. SUMMARY Com paring Adm inistration forecasts to Blue Chip consensus, DRI, Federal Reserve G reenbook and O ECD predictions o f real output growth in the U.S. economy, we find that the A dm inistration tended to see the future more optim istically and less accurately than the other forecasters. M uch, though not all, o f that rosy perspective was connected w ith the failure o f the A dm inistration to RMSE United States Administration Blue Chip DRI Greenbook OECD Canada Administration DRI OECD 2 1.51.5 -1.626 0. - 5 . 3 1.45 - 3 .7 .5 62.5 36 Mean Sum of Squared Squared Error Errors F E DE RAL RESERVE B A N K O F ST. L O U I S 45 - 2 .8 5.6 - 6 .3 REVIEW m a r c h /A pril 19 Table 9 Table 1 0 Descriptive Statistics, Errors in Forecasts of U .S. and Canadian Inflation, 1 9 8 0 - 9 0 Descriptive Statistics, Errors in Forecasts of U .S. and C anad ian Inflation, 1 9 8 0 - 9 0 (larg est erro r omitted) Country United States Administration Blue Chip DRI Greenbook Canada Administration DRI Mean Sum of Squared Squared Error RMSE Errors Bias Country 14.3 7 1.31 17.3 8 13.1 3 15.9 4 15.0 2 11.0 6 1 .1 4 3 .3 1.58 1.26 1 .0 9 1 .1 9 5 .3 1.45 1 .20 1.37 1.01 1 .21 .17 1 .0 0 United States 6 .4 Administration Blue Chip DRI 5 .2 Greenbook Canada - 1 . 4 Administration DRI variables assumed in predicting the future paths o f the econom ies. N onetheless, so far as we can ascertain, every forecast we have evaluated was a genuine prognostication of Sum of Mean Squared Squared Error Errors 11.6 2 9 .0 80.91 1 .16 9 .1 3 1 1 .5 3 10.61 RMSE Bias 0 .9 5 1.08 1 .0 4 .0 0.91 A p p en d ix DATA SOURCES 1 The Treasury thought the Council's forecast of U.S. economic growth in 1983 wos too high and substituted the Blue Chip consensus forecost. (As it turned out, the Treasury— that is, Blue Chip— forecost wos also too high, but not so high as the Council's.) 2 The dates of the Administration forecosts for the next year range from September through December of the previous yeor. judgm ents about the national economies. The Blue Chip consensus forecasts are the mean values o f the forecasts o f the firm s covered in the Blue Chip surveys. T he DRI forecasts are based on the outputs o f the DRI m odel and the ju d gm ents o f that firm ’s staff. T h e O ECD p rojections are prepared by m em bers o f that organization’s staff. The Federal Reserve fore casts are prepared by the staff o f the Federal Reserve Board. T he A dm inistration, Blue Chip, DRI and Federal Reserve forecasts, and the O ECD outlooks have appeared several times each year and are frequently revised. T h e WEO forecasts evaluated in this article are the last predictions o f b oth econom ic growth and inflation for the n ext year m ade during the previous year.2 T he Blue Chip and DRI fore casts for the U .S. and Canadian econom ies selected for com parison to the Adm inistration forecasts were those published during the same m onths as the Adm inistration forecasts. The DRI forecasts begin w ith those for 1976 and run through those for 1 9 9 0 . A com plete set o f DRI forecasts for all o f the G -7 countries 46 3.1 1.03 0.71 econom ic growth and inflation m ade in the closing m onths o f a year w ith respect to the n ext year. The data used in this article com e prim arily from the World Economic Outlook (W EO ) prepared by the U nited States Depart m ent o f the Treasury, Blue Chip Economic Indicators, D RI’s various Reviews, the OECD Economic Outlook and the Federal Reserve’s G reenbook. T he A dm inistration forecasts o f G -7 nations’ econom ic growth and inflation have been made since 1 9 7 5 (for 1 9 7 6 ). The forecasts evaluated in this article cover 1 9 7 6 to 1990, the last year for w hich forecasts have been cleared by the Treasury for release to the public. This is also the last year for w hich the G reenbook forecasts are cleared for public release. W ith one m ajor exception, the Administration forecasts for the U.S. econom y are those o f the Council o f Econom ic Advisers.1 Forecasts for the other G -7 econom ies are produced by Treasury financial attaches at U.S. embassies in the capitals o f these nations. T he attaches review the host-governm ent and host-cou ntry private-sector forecasts for the econom ies o f the nations to w hich they are posted and base their own forecasts on such inform ation, together w ith their own 3 1.07 1.06 7 .0 6 0 .9 6 1 .1 5 - 0 .9 0 .8 4 0 REVIEW is available for each year since 1 9 8 3 . The O ECD projections are those published in D ecem ber for the n ext year, beginning w ith the outlook for 1976. T h e Federal Reserve forecasts are those associated w ith the last Greenbook issued in a given calendar year (usually D ecem ber). GNP and GDP data are frequently revised. It was necessary to choose a fixed target to w hich to com pare the forecasts. W e used the Treasury D epartm ent’s historical data, w hich it provided along w ith its forecasts in each issue o f the WEO. Generally, historical data on GNP or GNP changes for a particular year continue to appear in the WEO for about 18 m onths follow ing the end o f that year. T h e last historical citation o f the annual change in national GNP or GDP appearing in the WEO is the outcom e to w hich the forecasts are com pared.3 A lthough CPI data tend n ot to be revised after they are issued, a sim ilar procedure has been followed in selecting the inflation data w ith w hich to com pare the forecasts. Because the Treasury presents no historical data for growth or inflation in 1978, we have com pared its forecasts for 1 9 7 8 w ith outcom es taken from the 1981 International Financial Statistics (IF S ) yearbook.1 3 In 1986, Canada changed the emphasis in its National Income and Product Accounts (NIPA) from GNP to GDP and stopped explicitly reporting historical real GNP data in its official bulletin. National Income and Expenditure Accounts (NIFA). When the Canadian NIPA focus shifted, the Administration began to forecast GDP instead of GNP for Canada and reported historical GDP data in the WFO. Since the 1985 and 1986 growth forecasts for Canada prepared by the Administration pertained to GNP, we obtained real GNP growth data for 1985 and 1986 with which to compare the forecasts. 4 The Administration's 1980 inflation forecast for the United States, which appeared in the September 1979 WFO, pertained to the GNP deflator rather than the CPI. The deflator calculated on the basis of data appearing in the 1981 IFS yearbook was used to test the accuracy of this forecast. Given the Administration data, the September 1979 Blue Chip, DRI and Federal Reserve forecasts of the increase in the U.S. GNP deflator— rather than CPI inflation— ore employed in this comparison. 47 r e v i e w MARCH/APRIL 1995 Joseph A. Ritter is a senior economist at the Federal Reserve Bonk of St. Louis. Heidi L. Beyer provided research assistance. ■ An Outsider's G uide to Real Business Cycle M o d e lin g (1 ) D ecisions o f firms and consum ers should be derived from fully specified intertem poral optim ization problem s w ith rational expecta tions. (2 ) The general equilibrium o f the m odel m ust be fully specified. (3 ) B oth the qualitative and quantitative properties o f the model should be studied. Lucas argued in 1 9 8 0 , before w ork began on RBC models, that theoretical developm ents beginning with H icks, Arrow and Debreu allowed m odern econom ists to begin w ork w hich m et the first two criteria. T he dram atic fall in the price o f capital (com puters) has made it possible to m eet the third criterion as well, allow ing m acroeconom ists to explore their models in m uch greater depth (although this potential is n o t always realized). This article is concerned m ostly w ith giving an outsider a feel for how the third requirem ent is met. It proceeds by describing the theory underlying a standard RBC m odel, explaining what con stitutes an equilibrium , and then delving into the m echanics o f solving a specific model (H ansen’s landm ark indivisible labor m odel) using a specific technique. I conclude w ith two illustrations o f how the basic m ethodol ogy can be extended to study fiscal and m onetary policy. Joseph A . Ritter One exhibits understanding o f business cycles by constructing a model in the most literal sense: a fu lly articulated artificial economy which behaves through time so as to imitate closely the time series behavior o f actual economies. Robert E. Lucas (1 9 7 7 ) uring the last decade, guided by Lucas’ principle, the real business cycle (RBC) model has become a standard tool for a large share o f macroeconomists. T he tool has found such widespread applicability that pro ponents o f this approach to m acroeconom ic modeling (and those w ith proper sensitivity training) now prefer a m ore generic label: com putable dynamic general equilibrium model. O ther demographic groups often regard the customs and rituals o f RBC propo nents w ith som e degree o f bafflem ent. The goal o f this article is to dispel som e o f the aura o f mystery that surrounds— from an out sider’s point of view— the specification, cali bration, solution and evaluation of RBC mod els.' It is thus concerned more with the “how’ ” s of RBC modeling than with the “why’s ” (or, for that matter, the “why not’s ”).2 Broader intro ductions to real business cycle modeling can be found in Blanchard and F isch er (1 9 8 9 , D THEORY The typical RBC model is an ArrowDebreu type economy, specifically a onesector stochastic growth m odel. M any iden tical consum ers who live forever m axim ize expected utility (derived from goods and leisure) su b ject to an intertem poral budget constraint. Competitive firms purchase factors in com petitive m arkets. U ncertainty com es from a stochastic shock to the econom y’s production technology. For simplicity, suppose that consum ers own capital directly and rent it to firms. Firm s buy capital and labor services from consumers and use them to produce a single output which can be used as either consum ption or invest m ent. O utput is the num eraire. T h e firms’ technology is described by an aggregate con- chapter 7 ), M cCallum (1 9 8 9 ), Plosser (1 9 89 ) and Stadler (1 9 9 4 ). The pioneering papers are Kydland and Prescott (1 9 8 2 ) and Long and Plosser (1983). Three criteria have guided the m odelbuilding process in the RBC literature. 49 1 Outsiders would include, omong others, those who (like the outfior) were educated where these models were not in favor and those who (like the author) finished school before these models held a large market share. 2 In this spirit, the programs used in the article are available on the FRED electronic bulletin board. For more information, see the bock cover of this issue. RV W E IE stant-returns-to-scale production function w hich includes an exogenous aggregate tech nology shock, A,: AtF(K „L,), where K, and L, are the aggregate levels o f capital and labor.3 The A, are usually taken to be serially corre lated, b u t the exact specification can be post poned. These are sim ple com petitive firms w hich will purchase labor and capital services at wage and rental price Rt up to the point w here their marginal products equal Wc and R„ respectively: (1 ) determ ined by the m odel; once equilibrium quantities are know n, they can sim ply be substituted into the E uler equation for each asset to determ ine its price. Since consum ers and firms are identical, this artificial econom y is m athem atically identical to a representative agent econom y in w hich one price-taking consumer sells labor and capital services to a single price-taking firm. O n th e surface, finding an equilibrium appears to be a very daunting task. Even though we have reduced the num ber o f co n sum ers and firms to one each, we still have an infinite num ber of goods: consum ption and leisure in various states o f the world at dates from 0 to infinity. However, a great deal is know n about the theory underlying this type o f econom y (Stokey, Lucas and Prescott, 1 9 8 9 ), and this theory provides im portant tools that allow sim ulations to be constructed. Wt = AtFL(K t,L t), Rt = A c k(K„ L,). F Let I be a consum er’s tim e endowm ent, 1, the am ount o f labor she supplies, c, her consum ption, k, her holdings o f capital and i, her rate o f gross investm ent. (Upper case will be reserved for aggregate variables.) T he con sum er takes prices W, and R, as given. Given a starting value k0, she chooses paths, that is, contingency plans, for i, and I, to m axim ize A SOLUTION IN PRINCIPLE E0j;f> u (c t, i — it)j F o r the representative consum er, the state o f this econom y at the beginning o f t is sum m arized by the individual’s capital stock kh the aggregate capital stock K, and the state o f technology A,. Thus, the m axim um lifetime utility attainable by the consum er will be a function V o f k„ K, and At. V (kt, K t, A,) is the value function for the consum er’s utility m ax im ization problem . T he core o f the problem is to find V. To start, substitute the budget constraint ( 2 ) into the consumer’s utility function, then substitute marginal products for W, and Rt as described by equation 1. T he latter substitution im plicitly defines the consum er’s rational expectations o f factor prices in terms o f present and future values o f aggregate labor and capital. In other words, the consum er does n ot care about Kt and L, per se; they merely contain the same inform ation as W, and R,.' W e now have su b ject to a budget flow constraint (2 ) c t + i , < R ,k t + W tlt and a description o f how capital accum ulates and depreciates: (3 ) 3 For o long time, the technology shock 4 , wos the driving force in most RBC models (hence, the "real"). Both proponents and opponents recognized this os the Achilles heel of this line of research. One response has been the devel opment of models in which technol ogy is not the only source of uncer tainty (the last section contains two examples), though the criticism goes deeper than simply claiming that there are other kinds of shocks (see Stadler, 1994, section IV A ). 4 The exact sequence of substitutions here is designed to hammer the model into the mold required later for a specific numerical solution method. For example, i, could easi ly be eliminated from the problem using 3 , but that would be inconve nient loter. k, = ( l - 5 ) f e 1 _1+ i [ , 0<<5<1 For present purposes, it is more useful to fram e the solution in term s o f decision rules which prescribe it and I, as functions o f current state variables, kh K, and At: i, = i(k t, K„ A,), I, = l(k t, K„ At). These decision rules depend only on the state variables w hich fully describe the position of the econom y at the beginning o f t and which, therefore, contain all of the information needed to decide optimal levels o f i, and 1,. A great deal o f inform ation about how the econom y works— about the structure o f the model, in other words— will be embedded in these fu nctions w hen we find them. In addition to capital, there may be many financial assets with a net supply o f zero, but, since consumers are identical and the economy is closed, these assets would be redundant. Nevertheless, the prices o f these assets are E 0 X j 8 'u ( a , F k(K„ L ,) k t [t =0 + A ,F l (K„ Lt ) I - i „ i - l () In period 0, the consum er is choosing i0 and 1 Rewrite utility as 0. SO m a r c h (4 ) / A pril u(A0Fk (K 0,L 0)k0 +A0Fl (K 0. 1995 (6) V(fe„K„A ,) = u(i(fe„ K„ A , ) , l ( k r K„ A , ) , k t, W K „ L ( K „ A ,) ,A ,) +/JE1| X ^ u ( A , F K(K„L,)fe, +0 E{v(fe,+,K,+,A,+ 1 1 I)|A,} + A lFK( K „ L , ) ( - i 1J - l , ) with (7 ) Exam ination o f the second term in 4 reveals an im portant feature o f the optim ization problem ; apart from the values o f state variables, the consum er will solve exactly the same problem in period 1 as in period 0. For an optim al plan, this recursion is sum m a rized in the Bellm an equation for the con sum er’s problem at t: (5 ) and I(K „ A t ) = i(K „ K r, A ,). Condition 6 says that, given expectations L (-), decision rules i(-) and 1(0 are optim al for consumers. The equations in 7 say that expectations of aggregate labor supply and investment are consistent with individual decisions. Only a sm all num ber o f exam ples can be solved analytically (for exam ple, Long and Plosser, 1 9 8 3 ), so we m ust now turn to the computer. VCkt,K „ A t) = m ax ju ( i t,I,,k t,K (, Lt,A t) i„l, I A SOLUTION IN PRACTICE + 0 E v { ( f e I+1, K 1 +1,A 1 +1)|A(} } To com pare the tim e-series behavior of the m odel’s equilibrium w ith the tim e-series behavior o f actual econom ies— to evaluate its quantitative im plications— requires that we sim ulate the model using specific functional form s and param eter values. T h e process o f choosing param eter values, calibration, is deferred to the n ext section. T he n ext few sections illustrate solution procedures by fully specifying, calibrating and solving Gary H ansen’s (1 9 8 5 ) indivisible labor m odel, an early landmark in the RBC literature. Hansen’s relatively sim ple model provides a clear illus tration, but should not be taken as the state of the art. The solution follows one of the popular linear-quadratic approxim ation methods/ The m axim ization on the right is subject to the constraint (3 ) that connects investm ent and capital. Em bedded in 5 is Richard Bellm an’s deep insight that if you know the value o f your problem n ext period for the various values o f state variables, it is a rela tively sim ple m atter— a static m axim iza tion— to figure out the optim al action now. There are four kinds o f variables in 5: individual decision variables (i„ I,); an indi vidual state variable ( k ,); economy-wide state variables (K„ A,); and an economy-wide variable determ ined in t (L,).5 The state variables are determ ined at the start o f t or inherited from t — T h e contem poraneously determ ined 1. econom y-w ide variable L, appears because (for m athem atical reasons evident below ) we have substituted out W, and Rt. These m arket-clearing prices would otherw ise sum marize the inform ation contained in K, and L, that is relevant to the consum er’s decision. O ur task is to find a recursive competitive equilibrium, that is, decision rules i(k„ K„ A,) and l(k„ K„ At) for the household, functions I(K„ A,) and L(K„ A,) determ ining aggregate investm ent and labor, and a value function V(k„ K„ At) such that L (K l, A t ) = l(K l,K „ A l ) Functional Forms Subsequently, the production function is assumed to be Cobb-Douglas: AtF (K t,L t) = e*' K°L\-e. T he technology shock eA is driven by an | A R (1) process: (8 ) A, = + e ,, |y|<l, where the £, are independent and identically 51 s Hansen and Prescott (1995) would call Z,an "aggregate decision vari able." Other solution methods would solve for pricing rules that specify IV, and It,as functions of stote variables rather than for on "aggregate decision rule" for Lt . In either case, the functions capture the substance of the assumption of rational expectations. 6 Taylor and Uhlig (1990) compare a number of approaches to solving stochastic growth models. Other papers in the same issue of the Journal of Business and Economic Statistics provide short descriptions of the various solution methods. R E V I E W the early RBC literature, would w ork like this: Since agents are identical in this m odel, a Pareto optimum can be found by maximizing utility (9 ) subject to society’s production possi bilities, ignoring market structure. Production possibilities are described by the production function, the process generating technology shocks, and the capital accumulation equation. T his is a m uch sim pler problem . Since the model has no distortions, the Second W elfare Theorem applies: The Pareto optim al alloca tion can be supported as a com petitive equi librium . Thus, the solution to the social planner’s problem replicates the outcom es o f a decentralized com petitive system. Rather than taking the shortcut o f solving the social planner’s problem , this section fol lows the more general m ethod described in Hansen and Prescott (1 9 9 5 ) that also applies to models with distortions.® Two such models are briefly described in the section titled “Extending the Basic M odel.” There are two keys to finding the value fu nction V using functional equation 5 or 5 '. T he first is approxim ation, described shortly. T he second is the C ontraction Mapping Theorem , a fixed point theorem , w hich guar antees that for certain problem s the following steps will converge to the value function V. T he theorem does n o t actually apply to m any RBC m odels, so there is no guarantee in gen eral, b u t this approach usually converges anyway, finding the correct value function. distributed norm al random variables that are independent o f all t - 1 variables.7 It is easier to w ork w ith A, rather than A, as a state vari able from this point forward. The utility function is specified in a som ew hat unusual way that incorporates indivisibility o f labor inputs, the contribu tion o f H ansen’s paper, (9 ) U (ct, I - l t) = lo g c , + B ( l - 1(), where B is a constant. T he Bellm an equation 5 becom es (5 ') V(fct,K ,, A,) = max|log^eA ,FK(K (,L [)l?1 + eA ,FL( K „ L , ) l , - i 1 ) + B ( i-I ,) + /jE{v(k,+1 t+ ,K I,A,+1)| t} } A Flansen showed that using a representative consum er w ith this utility fu nction produces the same competitive allocations as individual consum ers described in the follow ing way. Each consum er w orks either l0 hours or not at all, b u t gets paid in either case. T h e prob ability o f w orking, chosen by the consum er, is a,. Labor supply is determ ined indirectly by choosing a, rather than direcdy by choos ing Total labor tim e in the econom y is thus L,= a , l0. If the utility function o f indi vidual consum ers is (10) 7 This specification differs slightly from Honsen's, which assumes that the technology is L,), with e, lognormolly distributed. Choice of an ARO) process might be consid ered port of calibration since a spec ification search is usually part of the overall process of estimating 7 . 1 The method described here and in the appendix differs in details from Hansen ond Prescott's algorithm. 1. Choose an arbitrary function V°(fc(+1,K ,tl, At+1). 2. T he problem on the right-hand side o f 5 is now a static optim ization. Solve it to get d ecision rules it= i(k„ K„ A,) and lt= l(k t, Kt, At). Substitute these into the right-hand side to produce a new func tion, K„ At). 3. Replace V° on the right-hand side o f 5 w ith V 'O e ^ .K ^ .A .J . Return to step two unless V ‘ and V l+ are alm ost identical. 1 UCCp a , ) = logc, + A a , l o g ( l - ( 0 ), w ith A > 0, then the representative consum er w ill have utility 9. By m aking these m odifi cations, H ansen hoped to im prove on the rather poor performance of the basic model (with divisible labor) in m atching facts about relationships am ong hours, em ploym ent, output and productivity. Unfortunately, in general, step 2 w ill n ot produce a function that can b e w ritten down in any com pact way, particularly given the presence o f the expectation in the m iddle of the right-hand side of 5. This problem is addressed in Hansen and Prescott’s m ethod by solving a quadratic approxim ation o f the Iterating to Find the Value Function H ansen’s model could be solved using the shortcut o f finding a Pareto optim um , that is, solving the social planner’s problem . That approach, w hich was used extensively in 52 r e v i e w MARCH/APRIL m odel, rather than the full m odel. Variations on the linear-quadratic approxim ation have been the m ost com m on m ethod o f solving dynamic general equilibrium m odels, starting with Kydland and Prescott (1 9 8 2 ). F or sim ulation purposes, the model is approxim ated by a Taylor series expansion o f the utility function (as it appears in 4 after all the substitutions) around the steady-state equilibrium values (K , L, X) that would occur if we set all the shocks to zero. In some models, the zero-shock equilibrium is not a steady state. In these cases, a sim ple change o f vari ables usually produces the required steady state. If, for exam ple, the population were assum ed to b e growing, the model would be form ulated in per capita terms. F or H ansen’s m odel, (5 ') becom es (5") 19 one household. But the distinction between I, and L, m ust be maintained because the household m ust behave as if it takes prices (W, and Rt) as given, and these would be functions o f L„ n ot l„ if we had m ore than one consumer. So how should L, be handled? (Though it does n o t appear in the m odel, we also need to worry about I, for reasons that will become clear momentarily.) The model assumes that house holds have rational expectations about L, and I„ so they recognize that equilibrium values of these variables will satisfy the first-order con ditions. In m axim izing the right-hand side of 5 " at each iteration, the first-order conditions define a linear relationship am ong choice variables 1 and i„ aggregates L, and lt, and , state variables: V(fe„ K„ A,) 0 = uo, + uult + u 2lit+ u 3,Ll = maxjz'QZ, + u4,Il + u 5,k l + u6lK t + un At U 1 0 = Uol + u lll, + u 2iiI+ u 3,L l + pE[v(kt+ Ki+ ,A1 )|A,}} l, 1 +1 + u4jI t + u5ife, + where 2 ,= [1 A, k, K, i, 1, I, L ,]'. Including 1 as a state variable allows the quadratic approximation to be w ritten as a single qua dratic form (see the appendix). The beauty of the quadratic approximation is threefold. First, one can guess (correcdy) that the value fu nction is quadratic. Second, it does n ot depend on the distribution o f e, except for a constant that involves the covari ance m atrix o f £,. Third, this constan t is not essential for our analysis because it does not involve any o f the state variables. Because the constant is n ot essential, we can ignore it and the expectation along with it. F or details, see Sargent (1987, section 1.8), but it is not difficult to see that the iterations described above will always produce a quadratic if V° is quadratic. + u7iA,. T h e first-order conditions can be solved for 1, and i, to get household d ecision rules spec ified in term s o f state variables, as well as L, and I,. However, if L, is substituted for I, and I, for i, in the first-order conditions (thus im posing 7 ), the equations can be solved for L, and I, as functions o f state variables. These solutions can be interpreted as households’ conditional expectations o f aggregate labor supply and investment, given the current values o f state variables. Hansen and Prescott call these “aggregate decision rules.” The solutions for aggregate labor supply and investm ent replace L, and I, in the household decision rules w hich then becom e fu nctions o f state variables alone.’ This procedure ensures that cond ition 7 for a recursive com petitive equi librium is satisfied at every iteration. W hen the value function approxim ations converge, we have found a value function, decision rules for 1 and i„ and aggregate labor , supply and investm ent fu nctions that satisfy equations 6 and 7 by construction. T he C on traction M apping Theorem does n ot apply to this particular dynamic programming problem, but the algorithm does find the value function Imposing Equilibrium Conditions M ost o f the pieces o f a solution m ethod have already been described, but there is one m issing, namely, how to handle Lt. T his is neither a state variable nor a decision variable of any agent. It is an aggregate outcom e o f households’ decisions. T h e aggregation hap pens to be trivial here because there is only u 61K , S3 9 Though it appears here formally, I, drops out of household decision rules for this model, that is. Table 1 Calibration strategies are often m uch more com plex than this, and the ju stifications more Percentage Standard D eviations and elaborate, bu t they always have the same Correlations with Output simple purpose, to select a plausible parameter United States1 Model2 point at w hich to study the behavior o f the m odel. Kydland and P rescott (1 9 9 4 ) detail S.D. Corr. S.D. Corr. calibration strategies and their own philosophy Output 1.00 1.76 1 .76 1.00 of calibration. Researchers often conduct Consumption 1.29 0 .8 5 0.51 inform al sensitivity analyses, varying the 0 .8 6 Investment 8 .6 0 0 .9 9 5 .75 0 .9 2 param eters w hose values are m ost uncertain. T h e m ost com m on such exercise seem s to 00 .6 3 .0 4 Capital 0 .4 8 0 .0 6 be to vary the risk aversion param eter in Hours 1.66 0 .7 6 1.34 0 .9 8 models in w hich utility is o f the constant Productivity 1.18 0 .4 2 0.51 relative risk0.87 aversion form. 1 As reported by Hansen, Table 1. 2 Averages across 500 simulations. if given an appropriate V°. The results are, of course, subject to the caveat that if shocks take the econom y too far from the steady state, the quadratic approxim ation may n ot be accurate. CALIBRATION Ibis differs slightly from Honsen's value (0.00712) because technol ogy shocks ore specified in a differ ent way. See Kydland and Prescott (1982, p. 1362). There are six unknow n param eters in the description o f Hansen’s m odel, 6 , 8, /3, B, 7 and the variance o f £. H ansen chose values as follows. Given Cobb-D ouglas technology, 9 is capital’s share o f output. He used an esti mate o f 6 = 0 .3 6 based on tim e series for the U .S. economy. A choice o f 8 = 0 .0 2 5 (corre sponding to an annual depreciation rate of 10 percent) was chosen as “a good compromise given that different types o f capital depreciate at different rates.” A steady-state annual riskless real interest rate o f 4 percent would be implied by /?= 0.99. Hansen chose B = 2.85, w hich corresponds to an apparently arbitrary value o f A = 2 in 10, com bined w ith I0= 0 .5 3 . T he 0 .5 3 value equated steady-state hours in Hansen’s divisible and indivisible labor models. The standard deviation of e was chosen so that, for the artificial econom y with indivisible labor, the standard deviation o f detrended output would be about the same as that of detrended GNP for the U.S. economy. A value cr = 0 .0 0 7 1 7 m eets this criterio n .1 A value of 0 7 = 0 .9 5 was the first-order autocorrelation coefficient o f the Solow residuals for the U.S. economy. RESULTS O nce the value function is found and agents’ decision rules are know n, it is rela tively sim ple to sim ulate the model. The equations o f m otion for A, and Kt along with the aggregate d ecision rule for It are a system of three linear difference equations in three unknow ns that can easily b e sim ulated. (R ecall that K,= k, in equilibrium .) Starting values are chosen for the state variables and innovations e, are drawn randomly. T he real and artificial data are filtered by taking logarithm s and detrending w ith the H odrick-Prescott filter." There are two reasons for filtering. First, the model is intended to explain phenom ena at business cycle frequencies, and the H odrick-Prescott filter highlights those frequencies. T h e models are n o t intended to m atch long-run growth facts, so it would be unfair to compare low -frequency m ovem ents in the data w ith those from the m odel. A filter that removes low -frequency m ovem ents in the data and model output allows the m odel to be com pared to phenom ena in the data it was designed to explain. Second, m any m acroeconom ic time series may n ot be stationary. If this is true, their second m om ents do not exist. Though it would still be possible to generate sam ple second m om ents, there w ould b e no reason to think that another set o f observations on the same econom y would produce sample second m om ents sim ilar to the first set. Thus, there would be no point in trying to produce models that matched a particular set R E V I E W of sample second m om ents. Filtering that induces stationarity removes this problem in the sense that samples drawn from the same data-generating process would be expected to produce sim ilar sample second m om ents. There are other ways to filter the data, by taking first differences, for example. W hile the H odrick-Prescott filter is som ew hat con troversial (Cogley and Nason, 1 9 9 5 ; King and R ebelo, 1 9 9 3 ), proponents argue that it does a good jo b o f em phasizing the m ovem ents in the data that m ost m acroeconom ists would call business cycle m ovem ents. F o r exam ple, Kydland and Prescott (1 9 9 0 ) say “...the im plied trend path for the logarithm o f real GNP is close to the one that students o f busi ness cycles and growth would draw through a tim e plot o f this series.” Cogley and Nason argue, on the other hand, that if the data are an integrated process, “the filter can generate business cycle periodicity and co-m ovem ent even if none are present in the original data. In this respect, applying the HP filter to an integrated process is sim ilar to detrending a random w alk.” The results in Table 1 summarize 500 simulations o f 115 periods each. The statistics are calculated from natural logarithm s of each series detrended using the H odrick-Prescott filter w ith a param eter o f 1 6 00 . E ach sim ula tion chooses A0 from the uncondition al dis tribution o f This is more difficult for K0, so I sim ulate the m odel for 1 0 0 periods, starting K at its steady-state value. The value after 100 periods is used as K0 for the sim ulations reported in Table I .1 In other words, I simu 2 late the model for 215 periods and throw away the first 100 in order to get a representative distribution o f starting capital stocks. This procedure allows the statistics reported in the table to be interpreted as averages across 5 0 0 identical artificial econom ies w ith indepen dent realizations o f the technology shocks. Evaluation o f RBC m odels’ output has usually been inform al. Hansen, for exam ple, was interested in how well this indivisible labor model performed relative to a more standard divisible labor model (w ith utility given by indivisible labor model and 1.4 for the U.S. economy. He argued that the indivisible labor model showed prom ise because standard m odels chronically produced ratios that were too small. Since the real world is not charac terized by fully indivisible labor, he argued, it was good that the ratio for the U.S. econom y lay betw een the two m odels’ predictions. A few additional tools have been used to evaluate model output. A fairly com m on approach is to com pare im pulse response fu nctions from the model w ith those from a vector-autoregression on the data. W atson (1 9 93 ) has proposed a procedure for evaluating the fit o f a calibrated model. A variety o f new approaches is discussed in Pagan (1 9 9 4 ), w hich is a thought-provoking overview of calibration exercises. EXTENDING THE BASIC MODEL T he solution technique described above is m ore powerful than needed to solve H ansen’s m odel, b u t m akes it possible to outline how more sophisticated models can be handled. I’ve chosen two exam ples from areas in w hich extensive contributions have been made. These particular papers fit easily into the framework developed above. Fiscal Policy One obvious road to follow in generalizing the basic RBC model is to add fiscal policy to the model. Though obvious, this was not initially an easy road because a m inim ally realistic m odel requires distorting taxes. T he first generation o f solution m ethods that relied on solving the social planner’s problem are not appropriate for m odels in w hich the Second Welfare Theorem is not true. A recent contribution in this area is M cGrattan (1 9 9 4 a , 1 9 9 4 b ), w hich developed a model in w hich agents face stochastic tax rates on both labor and capital incom e. M cGrattan (1 9 9 4 b ) modified the indivisible labor model as follows. The governm ent uses tax revenue to fund government purchases and lump-sum transfers. Thus, the consumer’ s budget constraint (2 ) is replaced by log ct - A log 1 He noted that the standard (). deviation o f hours relative to that o f produc tivity in the divisible labor model was only about 1 com pared to 1.34/0.51 = 2 .6 for the 55 12 The values reported in columns three and four of Table 1 differ very slightly from those reported by Hansen. Sampling variation and o slightly different process generating X probably account for the differ ences. REVIEW MARCH/APRIL m oney balances carried over from last period, mM, plus the lum p-sum transfer o f seignior age revenue, gMt V T h e household budget constrain t is c, + i , < ( l - T , ) R , f e , + S t ,!?, + (1 - 0,) W,I,+ £ ,, where the capital tax allows a depreciation deduction and is the lum p-sum transfer. The tax rates, Tt and <r and governm ent pur p chases, g(, are exogenous state variables (like the technology shock A,). T h e size o f the transfer is determ ined by the governm ent budget constraint w hich im poses period-byperiod budget balance: P,c, + P,i, + m, = PtW,l, + P(R,fe, + " V i + gM,-!T he last term on the left represents m oney balances carried into t + 1 . Because positive m oney growth results in inflation, it is necessary in this m odel to m ake a change o f variables for the zerosh ock path to be stationary. (R ecall that we need a steady state around w hich to form a quadratic approxim ation.) There is a steady state w hen the m odel is w ritten in term s of m, = m,/M, and P, = P,/M(. The two con straints (transform ed by the change o f vari ables) are used to elim inate c, and !, from the consum er’s utility fu nction, leaving an opti m ization over m, (m oney holdings carried into £+1) and i(. T h e m oney supply M, is an exogenous state variable, and is added to the list o f equa tions o f m otion. T he endogenous state vari ables are fe(, K, and mt V An equation of m otion that says that this period’s purchases o f m oney becom e n ext period’s m oney state variable is added to the list for endogenous state variables (the B matrix in the notation of the appendix). T he aggregates that must be determined are an investm ent function I (A,, M(, K,) and an aggregate price function P (A,, Mt, K ,). Since M, is exogenous, there is no aggregate that co r responds directly w ith the d ecision variable m,. The aggregate price level P, serves this role instead: At each iteration, I(A ,,M ,,K () and P(A,,M ,,K() are chosen by setting i,= I, and m,= 1 (th at is, m,= M,) in the first-order con ditions and solving for I, and P, as functions of state variables. (F o r H ansen’s m odel, by contrast, we set i = I t and !(=L , in the firstorder cond itions, then solved for I, and L(.) Details on how to handle this slight variation can be found in Cooley and H ansen (1 9 8 9 ). £ = t ,(R t- 5 ) K , + * ,W ,L ,- G ,. The representative agent must form expec tations about assum ing that her decisions have no influence over governm ent revenue. Thus, K, and L, rather than fe, and l( appear in the governm ent budget constraint. In this model, there are four exogenous state variables, A,, T(, <t and G,. M cG rattan calibrated the f> stochastic processes for these variables by estim ating a first-order autoregression for each. She argues that her results indicate the addition o f these fiscal shocks to the basic indivisible labor model brings it into “m uch better agreem ent w ith the data.” To solve the m odel using the procedure outlined above, substitute the new budget constraint into the utility function, as before.1 3 Then substitute the right-hand side o f the governm ent budget constraint for Add the assumed stochastic processes for tax rates and governm ent purchases to the list o f equations o f m otion (th e m atrix A in the language o f the appendix). Money Cooley and Hansen (1 9 8 9 ) studied an RBC model with a cash-in-advance constraint. In the sim pler version o f their m odel, the m oney supply M, grows at a constan t rate, g: M , = ( l + g)M ,_1. Households’ consum ption decisions m ust satisfy the cash-in-advance constraint, CONCLUSION RBC m ethods have found application in a wide spectrum o f questions in business cycles, m onetary econom ics, open econom y m acroeconom ics and finance. The linear- P,c, <m«_j + g M ,.lt 13 McGratton octuolly used g method described in McGrattor (1994c). w hich says that the nom inal value o f con sum ption purchases, P,c(, m ust n o t exceed 19 56 _ _ _ _ _ _ _ _ a_n d_ _ _ _ _ _ _ _ _. "Time to Build ond Aggregate Fluctuations," Econometrica (November 1 9 8 2 ) . quadratic approach described in this paper is a popular tool that can be applied to a broad cross-section o f the questions posed in this literature. More generally, careful study o f a specific m ethod illustrates how equilibrium conditions m ust be tied to optim ization to find an equilibrium numerically. Lucas, Robert E. "Methods and Problems in Business Cycle Theory," Journal of Money Credit and Banking (November 1 9 8 0 , part 2 ) . _ _ _ _ _ _ _ _ ._ "Understanding Business Cycles," Carnegie-Rochester Series on Public Policy ( 1 9 7 7 ) . McCallum, Bennett T. "Real Business Cycle M odels" in Robert J. Barro, e d ., Modern Business Cycle Theory. Harvard University Press, 1 9 8 9 . REFERENCES M cGrattan, Ellen R. "A Progress Report on Business Cycle M odels," Federal Reserve Bank of Minneapolis Quarterly Review (fall 1 9 9 4 ) . Blanchard, Olivier Jean, and Stanley Fischer. Lectures on Macroeconomics. The MIT Press, 1 9 8 9 . Cogley, Timothy, and Jam es M. Nason. "Effects of the Hodrick-Prescott Filter on Trend and Difference Stationary Time Series: Implications for Business Cycle Research," Journal of Economic Dynamics and Control (January/February 1 9 9 5 ) . _ _ _ _ _ _ _ _ . _ "A Note on Computing Competitive Equilibria in Linear M odels," Journal of Economic Dynamics and Control (January 1 9 9 4 ). Pagan, Adrian. "Calibration and Econometric Research: An Overview," Journal of Applied Econometrics (December 1 9 9 4 , supplem ent). Cooley, Thom as F., ond Gary D. Hansen. "The Inflation Tax in a Real Business Cycle M odel,"The American Economic Review (September 1 9 8 9 ). Plosser, Charles I. "Understanding Real Business Cycles," Journal of Economic Perspectives (sum m er 1 9 8 9 ) . Hansen, Gary D. "Indivisible Labor and the Business Cycle," of Journal Monetary Economics (November 1 9 8 5 ). _ _ _ _ _ _ _ _ and Edward C. Prescott. "Recursive Methods for Computing _ Equilibria of Business Cycle Models," chapter 2 in Thomas F. Cooley, ed., Frontiers of Business Cycle Research. Princeton University Press, 1 9 9 5 . King, Robert G ., and Sergio T. Rebelo. "Low Frequency Filtering and Real Business Cycles," Journal of Economic Dynamics and Control (January/M arch 1 9 9 3 ). Sargent, Thomas 1. Dynamic Macroeconomic Theory. Harvard University Press, 1 9 8 7 . Stodler, George W. "Real Business Cycles," Journal of Economic literature (Decem ber 1 9 9 4 ) . Stokey, Nancy L., Robert E. Lucas and Edward C. Prescott. Recursive Methods in Economic Dynamics. Harvard University Press, 1 9 8 9 . Taylor, John B., and Harold Uhlig. "Solving Nonlinear Stochastic Growth Models: A Comparison of Alternative Solution M ethods," Journal of Business and Economic Statistics (January 1 9 9 0 ). Kydland, Finn E ., and Edward C. Prescott. "The Computational Experiment; An Econometric Tool," Federal Reserve Bonk of Minneapolis StaffReport 178 (August 1 9 9 4 ) . Watson, Mark W. "M easures of Fit for Calibrated M odels," of Journal Political Economy (December 1 9 9 3 ). _ _ _ _ _ _ _ _a_n d _ _ _ _ _ _ _ _ _ _ . "Business Cycles: Real Facts and a Monetary M yth,"Federal Reserve Bank of Minneapolis Review (spring 1 9 9 0 ). Long, John B ., and Charles I. Plosser. "Real Business Cycles," of Journal Political Economy (February 1 9 8 3 ) . _ _ _ _ _ _ _ _. _ "The Macroeconomic Effects of Distortionary Taxation," Journal of Monetary Economics (June 1 9 9 4 ). 57 A p p e n d ix FINDING THE VALUE FUNCTION Notation or, com bining all three, Let p (x ) be the num ber o f rows in the vector x. Let z be the vector o f exogenous state variables, s and S the vectors of individual and aggregate endogenous state variables, d the vector o f decision variables, and D the vector o f “aggregate decision variables.” For reasons o f convenience, the first elem ent o f z is always 1. Let 'a 0 0 X = CZ = Bj B2 0 0 z s B3 B4 Bj S + 0 B1 0 B2+B 3 0 B4+ B 5 0 D T h e m atrix C is p (X ) x p (Z ). F o r H ansen’s m odel, Z ,= [l A, k , K, i, I, I, L J ' , X: Aand d £ 1 0 0 7 Z = B = [0 0 ( 1 - 5 ) 0 1 0 0 0], U sing - to denote next-period values, the constraints are The General Form of the Problem U sing the notation in H ansen and Prescott (1 9 9 5 ), the problem we wish to solve in order to find an equilibrium is Z = AZ + £ = [A 0 0 0 0] +£ (A l) V (X ) = m a x r (Z ) + 0 E{V(X)|2 } d su b ject to X = C Z + s = BZ = [Bj B2 B3 B4 B5 ] w ith D = D (z,S). All nonlinear constraints have been substituted into the return fu nction r. As m entioned above, the D = D(z, S ) equation sum m arizes agents’ rational expectations about aggregate values o f their own decision variables, for exam ple, labor supply. Since it does not involve the choice variables d, it is not really a constraint, but will be used to derive decision rules that depend only on X rather than b oth X and D. This is w hy the problem specifies “w ith” rather than “su b ject to .” S = [ B , B2 B3 B 4 B 5 Steady-State Solution = [Bj 0 B2 + B 3 0 B 4 + B 5 The return function will be approximated around a steady-state solution to the model w hen £ = 0 . T he steady-state solution solves 58 the follow ing set o f p (Z ) equations in elem ents o f Z: quadratic problem . The value fu nction for this kind of problem is known to be quadratic. The first function in the sequence can be any quadratic function, but convergence is som e times sensitive to the choice. Hansen and Prescott recom m end V< 17I, where 17 is a 0)= small negative number. If V(n is the p (X ) x p (X ) m atrix o f the nth > quadratic value function approxim ation, the (n+ l ) st approxim ation is given by X = CZ (excluding the s row s) 0 = rd(Z) + Pri ( Z ) l I - p B s]~l Bd d=D s=S. The first vector equation contains p ( z )+ p (S ) scalar equations.1 The second vector equation contains p(d) scalar equations that are the first-order conditions for d. They ma XZ'QZ + P X 'V ^ X take into accou nt the recursive nature o f A l, that is, the fact that d affects every future period by changing s. Bs is the derivative of BZ w ith respect to s, that is, the p ( s) colum ns o f B that correspond to the s elem ents o f Z (the p ( z ) + 1 through p (z )+ p (s) elem ents). Similarly, Bd consists o f the p (d ) colum ns of B that correspond to the d positions in Z (th e p (X ) + l through p (X )+ p(d) elem ents). su b ject with D = GX. The equation D = G X summarizes the “aggregate decision rules” implied by VM (the derivation o f these is described below ). As explained above, this equation is not a constraint. F irst elim inate the equations o f m otion for state variables to get an equivalent problem m ax Z'QZ + / 3 Z 'C V n)CZ w ith The Quadratic Approximation as a Quadratic Form d m ax Z 'R Z with L et x be a k row vector and l e t b e a (fc+ l)x (fc+ l) m atrix. Partition ’P so that 'P'1 1 is a scalar. Then d D = GX D = GX. Decision Rules 1 1 "1 "' 4*l M X . 2 1 to X = CZ V X The first-order conditions for this problem are the second-to-last p (d ) rows (the p (X ) +1 through p (X ) + p (d ) rows) o f ='J'11+ ('F 2 'F 12)x '1+ +x'k P22x. 0 = (R + R ')Z . Thus, any quadratic function from R feinto R o f a vector x can be w ritten as a single qua dratic form in [ 1 x'] by collecting the constant terms in 'Pjj, the linear terms in ('P 2 + 'I'12) x, 'l and the squared terms in x ' ^ 22x. The quadratic approximation to the return function is subsequently written in this way. D enote the quadratic approxim ation to r(Z ) by Z'QZ. The m atrix Q involves derivatives that can be calculated either analytically or numerically. W rite these p (d ) equations as 0 = UZ where U is p (d ) x p (Z ). Partition U to conform w ith the com po nents o f Z: z s o= m U2 U3 U4 U5 ] S d D Substituting Out Constraints and Equilibrium Conditions Solving for d yields2 The remainder o f this appendix describes the process o f finding a sequence o f approxi m ations to the value function that converges to the actual value function for the linear- d = -U ~ 1(U1z + U 2s + U 3S + U5D). The aggregate decision rules are obtained 59 1 Numerical methods for solving these equations usually require dropping the equation that describes the evolution of the state variable 1. Most economists have little trouble solving this equation analytically, however. 2 In some circumstances i/4 is close to singular, which leads to conver gence problems. An alternative is to impose the equilibrium condition 0= d before solving for d, which instead requires ((/4+ (/ s) _ l . One caveat is needed, however. This variotion leads to individual deci sion rules which have the wrong weights on dand Dthough the , sum of the weights is correct (so that aggregate decision rules are correct). If, for some reason, indi vidual decision rules are needed, the correct weights can be found by choosing them so that the firstorder conditions used in finding the steady state are satisfied with D ot its equilibrium values but with d*D. by setting d=D and s= S in the first-order conditions. This leads to D = - ( U ,+ U5r 1 [U, 0 T h e value fu nction is updated u n til V(n+1) and V< ) are sufficiently close. T he (1 ,1 ) elem ent n o f V tends to converge slowly, but, because it does n ot enter the first-order cond itions (U Z=0), that elem ent can be ignored w hen testing for convergence, unless the value function itself is needed. «/2 + U3 )] = GX. Substituting this into the previous equation gives individual decision rules that are func tions o f state variables only: d = - U ? (UjZ + U2s + U3S + U5GX ) = - u ; 1([u 1 U2 u 3] + u 5g ) x = HX. Substitute d H D G = ]X into the objective fu nction as follow s to obtain the new value function: X X JX Z'RZ = JX =[x' x 'j 'J r X JX R 12 X ^21 ^22 = [x- x r ] JX R 11 = [ x ' r 11+ x ' j ' r 21 X 'R 12+ X 'J 'R 22] X JX . = X'Rn X + X 'J' R21X + X'Rn JX + X'J'R22JX = X '[R u + J ' R 21 + R 12J + J 'R 22J]X = x V n1 . + )x 60 REVIEW FEDERAL RESERVE BANK OF ST. LOUIS W ORKING PAPERS SERIES States and European Com m unity for the Integration o f High and Low Incom e E con om ies.” orking papers from the Federal Reserve Bank o f St. Louis reflect pre lim inary results o f staff research and are made available to encourage com m ent and discussion, as w ell as invite suggestions from other researchers for revision. 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Bullard, “Collapsing Exchange Rate Regimes: A R einterpretation.” 9 0 - 0 0 8 -John A. Tatom, “The P-Star Approach to the L in k Betw een M oney and P rices.” 9 1 - 0 0 4 A -Jam es B. Bullard, “Learning Equ ilibria.” PUBLISHED: Journal o f Economic Theory (D ecem ber 19 9 4 ). 19 63 A rticles in the upcoming M ay/June issue of R eview (the 1994 Conference Issue: Channels of M onetary Policy) Th eo retical Issues of Liq u id ity Effects Inform atio n, Stick y P rices and R elated Problem s Alan C. Stockman and Lee Ohanian Discussant: Kevin D. Hoover Allan H. M eltzer D iscussant: Randall Wright R eso lvin g the Evid en ce on the Liq u id ity Effect P an e l D iscussion: W h at Do W e K now A bout How M o n e tary P olicy A ffects the Econom y? Adrian R. Pagan and John C. Robertson Discussant: Lawrence J. Christiano Is Th ere a " C re d it C h a n n e l" for M o n etary P o licy ? R. Glenn Hubbard D iscussant: Bruce D. Smith D isting uishing T h eo rie s of the M o n etary Transm ission M echanism Stephen G. Cecchetti D iscussant: M ark Gertler Panelists: Ben S. B em anke, Thom as F. Cooley, Manfred J.M. Neumann A ll nonproprietary and nonconfidential data and programs for the articles published in Review are available to our readers and can be obtained from three sources: l.F R E D (F e d e ra l R e s e rv e Econom ic 2 . R e sea rch D e p a rtm e n t, Federal D a ta ), a n e lectro n ic b u lle tin b oard s e rv ice . You can access FRED by Reserve Bank of St. Louis, Post Office Box 4 42, St. Louis, MO 6316 6 -0 4 4 2 . dialing (3 1 4 ) 6 2 1 -1 8 2 4 through a modem-equipped personal computer. For a free brochure on FRED, please call (3 1 4 ) 444-8809. You can request data and programs on either disk or hard copy. Please include the author, title, issue date and page numbers with your request. 3 . In te r-u n iv e rs ity Consortium fo r P o litical an d So cia l R e sea rch (ICPSR). 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