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CAN THE YIELD CURVE BE USED TO INDICATE
THE STANCE OF MONETARY POLICY?

Good morning.

I am happy to be here today, even

if it is at a time when the beginning of the recovery
and its strength seem to be in doubt.

An opportunity

like this always is welcome because it gives me one
more chance to challenge some of the conventional
wisdom and make a few more converts to a different
point of view.
Indeed, I am especially happy to be here as a
former government bond dealer.

As some of you may

know, I once managed the government bond desk at Morgan
Stanley and, in that capacity, spent my time trying to
decipher whether an FOMC directive that said "may" was
different from one that said "might." And early in my
Fed career, I would sometimes think, after attending an
FOMC meeting, "If I only knew then what I know now."




The answer, I've discovered, is "Doing time along with
other inside traders."
At this important crossroads for monetary policy,
I'd like to discuss a problem that has plagued our
decisionmaking for a decade.

Since the nationwide

introduction of NOW accounts in 1981, the monetary
aggregates often have behaved erratically.

In fact,

the behavior of Ml has been so problematic that the Fed
no longer sets a target range for its growth. M2,
which the Fed now emphasizes, is no winner either as we
have seen factors wholly unrelated to money creation—a
panic about the safety of large CDs in thrifts in 1989
and a flight to bond funds this year—cause large
swings in the growth of M2. These portfolio shifts, I
would argue, raise serious questions about the
usefulness of M2 either as an indicator of the stance
of monetary policy or a guide to the future course of
nominal spending and inflation.




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Amidst this uncertainty about the best indicator
of the thrust of monetary policy, the yield curve has
become, to some, the new Holy Grail.

Even though a

cynic might dismiss it as just another indicator/flavor
of the month, I think its potential is worth
discussing.

Unlike some other proposals, which have

had little merit, research evidence from several
prominent academics has supported the arguments of some
past and current policymakers in favor of this
market-based measure.

But, as president of the St.

Louis Fed, you will not be surprised to hear that I
have some doubts.

Let me explain why.

Although a variety of specific yield curve
measures has been suggested by interest rate
aficionados, most rely on changes in the spread between
some long rate and short rate to indicate easing or
tightening of monetary policy.

Despite disagreements

on other matters, these analysts and I agree that
movements in long-term interest rates are driven by




3

changes in inflationary expectations. Moreover,
because inflation tends to unwind slowly, large and
sustained changes in long rates tend to occur only when
the Fed has stuck with a relatively easy or tight
policy for some time.

Certainly long rates move

day-to-day but, for our purposes, we are talking about
their gradual movement to a new level and staying there
in response to a fundamental revision in the public's
perceptions of inflation's future course.
Most of the action in a yield curve —
rate spread —

or interest

indicator, as you might expect, comes at

the short end of the market.

Here, a Fed easing occurs

through an increase in the supply of credit and is
presumed to reveal itself in a decline in short rates;
a tightening, caused by a reduced supply of credit,
would be expected to raise short rates. Therefore,
even without any response in long rates, the spread
measures are expected to widen when the Fed eases and
narrow when it tightens.




And, if you get reinforcing

actions from the long end —

for example, a Fed easing

also pushing up inflationary expectations and long
rates —

the spread measures should only widen or

narrow by greater amounts.
Changes in the yield curve spread between long and
short rates, following the story to its next step, then
are supposed to affect both business and consumer
spending by encouraging credit creation•

With lower

short-term interest rates, financial institutions will
be able to issue liabilities more cheaply and,
presumably, will be inclined to make more loans.

And,

from the other side of the market, borrowers presumably
will be more inclined to borrow and spend on such
things as consumer durables.

Thus, a widening spread

is interpreted as an easing of monetary policy because
its predicted effect is a more rapid rate of spending
in the economy.

It also is easy to see how a narrowing

spread, which would be expected to slow credit growth
and spending, often is linked to a tighter monetary




5

stance.

On the face of it, a spread—or yield

curve—measure seems to have a simple logic in its
favor.
The attention being paid to market-based
indicators of this sort, of course, may never have come
about unless we had experienced the financial
innovations of the 1980s and ten years of debate on how
relationships between the monetary aggregates and both
spending and inflation had been affected by them.

And,

in fairness, there is good reason to be confused on
this front.

The academic research has shown —

take

your pick —

that Ml has or has not been distorted by

innovations, M2 is or never was a useful guide to
policy and the monetary base has or has not lost its
usefulness in the wake of erratic shifts in the growth
rate of currency.
How does the evidence shake out?

Well, as we've

always insisted here in St. Louis, let's look at the
data.




In fact, let me walk you through a specific case

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study of what alternative indicators of monetary
actions suggested at a recent crucial turning point.
Exactly one year ago, I attended an FOMC meeting that
was one of the first, of many, to be leaked almost
verbation to the Wall Street Journal.

Although FOMC

meetings have since taken on the air of prize
fights—"the third fight of the decade this
month"—this was a critical meeting.

The effects of

higher oil prices on economic activity were unknown,
money growth (as measured by M2) appeared to be
consistent with both price stability and sustained real
growth and, at least at that time, neither the Board's
staff nor the Blue Chip consensus forecast had yet
indicated that a recession was likely.
At a meeting of this sort, however, you can well
expect that some people argued for restraint —

to hold

the price-level consequences of higher oil prices in
check —

while others argued for ease —

to ameliorate

the adverse consequences of higher oil prices on real




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activity.

With the FOMC having the same three options

as Goldilocks, the remainder of the Committee thought
the current thrust of policy was "just right.11
What did the data show?

M2 had grown at a 3.5

percent rate during the second and third quarters of
1990 relative to its three year trend rate of 4.2
percent, a sign —

to St. Louis Fed junkies —

that the

stance of policy was about right and, if anything, a
little on the tight side.

Looking at adjusted reserves

would have reinforced this view as they had grown at a
0.8 percent rate over the same two quarters relative to
their 1.4 percent trend rate.
A garden-variety yield curve measure, however,
would have suggested that an easing of monetary policy
had been in place since the previous spring.

For

example, the spread between fed funds and 10-year
Treasuries had widened from 20 basis points in June to
70 basis points by the end of September.




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Looking back on that October 2, 1990, FOMC meeting
through the fourth quarter and into spring of 1991 we
can see how, at a crucial turning point in both
monetary policy and the business cycle, a yield curve
indicator of monetary policy can be extremely
misleading.
As we know now, the economy weakened considerably
during the fourth quarter.
M2 growth were flat.

Simultaneously, both Ml and

Growth in adjusted reserves,

although picking up slightly in the fourth quarter, was
recovering from its anemic third quarter pace.

From my

perspective, these data tell me that monetary
policy—at best—was neutral in the fourth quarter of
last year and, by some indicators, got more
restrictive.

And yet, by early January, all of the

spread measures had widened by another 70 basis points.
How can that be?

Well, the fly in the ointment is

the possibility that short rates tend to fall —
irrespective of Fed actions —




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as the economy slows

because of a reduction in the demand for credit. Or,
to put it simply, the difference between the standard
yield curve story and the reality of what occurred in
the market last year is based on a confusion between an
increase in the supply of credit and a reduction in the
demand for credit.

Either change will tend to make

short rates fall, but the two sources of change have
completely different interpretations and consequences.
Let me explain in greater detail.

In retrospect,

it seems clear that the decline in short-term interest
rates last fall (and the widening spread) were sending
a signal.

The problem is that a slumping economy and a

reduced demand for credit —
the message.

not a Fed easing —

was

This very real possibility, verified by

the data of past recessions, tells me that interest
rate spreads, like other market-based measures of the
thrust of monetary policy, are not particularly useful
because a variety of factors —




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mostly beyond the

control of policymakers —

are likely to drive their

behavior.
What would the same yield curve measure tell us
now?

In the first half of this year, the 10-year

Treasury - fed funds spread widened by another 75 basis
points.

Since mid-July, however, it has narrowed

slightly.

The Ml measure of the money supply, however,

has been rising at a 7.5 percent annual rate since the
end of last year, a pace nearly double that of last
year.

Similarly, the growth rate of adjusted reserves

also has doubled relative to its rate during the second
half of 1990. The adjusted monetary base has been
expanding smartly as well.

All told, I think the

evidence points to a mirror image of the conditions
last fall:

instead of signaling ease when policy

actually was getting more restrictive, the yield curve
measure now indicates a neutral policy when, in my
view, the Fed has eased quite enough, thank you.




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Where does this leave us?

Frankly, I believe

that, despite all of the debate and confusion, nothing
in the world has changed to refute the idea that
reserves are the foundation for money creation.
Moreover, accelerations or decelerations of money
growth above or below its trend rate still tend to be
reflected in accelerations or decelerations in the
inflation rate.

Admittedly, the empirical relations

are not as tight as they once were.

But they still

give clear, leading signals of the direction of change
in spending and prices.

From my view, as a central

banker, all of the sound and fury over the financial
changes of the 1980s have done nothing to alter the
approach to monetary policy advocated by my St. Louis
colleagues for so long.
And in that view, where do we stand now?

Perhaps

at one of the most important turning points for
monetary policy in some time. As I've already noted,
the growth rates of adjusted reserves, the monetary




12

base and Ml all have accelerated sharply from their
slumps during the second half of last year.

Slow M2

growth is, I believe, a red herring that is related to
portfolio reallocations rather than money creation.
Still, the current data on real economic activity are
mixed and, to some observers, indicate the corner has
not yet been turned for real activity.

So, as you well

know, the drumbeat for more ease goes on.
Frankly, this causes me a great deal of concern
because, if we've learned anything from the past, it's
that monetary policy has only temporary effects on the
real economy but it's effects on inflation are
persistent.

Why then, with the trend growth rate of

money in the neighborhood of 3 to 4 percent, should we
give up this hard-won ground for a temporary boost in
output?

If we can stay the course, experience tells us

inflation will continue to fall from its pre-war rate,
approaching 6 percent, to something closer to three




13

percent and that long-term interest rates will come
along for the ride.
Experience also tells us that using monetary
policy to reverse recessions has left us with inflation
rates that have been higher after every recovery than
their values prior to those downturns.
good long-run policy.

This is not

And now that I have given up the

bond desk and its long-run horizon of an hour or two, I
have to avoid the lure of short-run palliatives as we
move the country toward low, sustained inflation rates
not seen in thirty years.

From this foundation I

believe it also is possible to re-launch a comparable
period of strong and sustained real growth.




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Thank you.