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What Do Worker Flows Tell Us About
Cyclical Fluctuations in Employment?
BY SHIGERU FUJITA

M

any official surveys give us important
information about labor markets and
unemployment, as well as other statistics.
However, these surveys reveal only the
net gains or losses in employment over a given period.
Consequently, how many gross hires and separations lie
behind the net changes is missing from these statistical
releases. Data on gross flows turn up additional valuable
information. In this article, Shigeru Fujita uses such data
to examine cyclical changes in the pace of the worker
reallocation process and its effects on the U.S. labor
market.

The number of jobs added or lost
in the U.S. economy every month is
one of the most eagerly awaited statistics among policymakers and market
participants. For example, we may
recall the recent episode of a “jobless
recovery,” in which even though the
recession was officially over in the
fourth quarter of 2001, the apparent
weakness of the labor market continued into 2002 and 2003. During that
period, newspapers and magazines
thoroughly scrutinized the job numbers from the Bureau of Labor StatisShigeru Fujita is
an economist in the
Research Department of the
Philadelphia Fed.
This article is
available free of
charge at www.
philadelphiafed.
org/econ/br/index.
html.
www.philadelphiafed.org

tics' (BLS) establishment survey, often
called the payroll survey.1
The payroll survey includes important information about labor market developments in the U.S. — not
only the total number of jobs added
or lost but also a detailed industry
breakdown, hourly and weekly earnings, average workweek, and so forth.
We can also look at the results from
the BLS’s monthly household survey,
which tells us the unemployment rate
and labor market participation rate, as
well as other statistics. Undoubtedly,
these statistics are very useful in assessing in a timely manner the current
state of the U.S. labor market or, more
generally, the well-being of the overall
economy.

In fact, Time (December 29, 2003) chose
"jobless recovery" as one of the buzzwords that
characterized 2003.

1

However, they reveal only the net
gains or losses in employment over a
given period, and therefore, how many
gross hires and separations lie behind
the net changes is missing from these
statistical releases. Data on gross flows
turn up additional valuable information that is buried in the monthly
releases of those surveys. Specifically,
think of the following two situations
in the labor market. In the first scenario, firms increase the number of
hires while the pace of separation of
workers is held constant. In the second, the pace of separation of workers
slows down while the pace of hiring
stays the same as before. These two
scenarios could yield the same number
of net job gains, but their implications
for the economy are very different.
In particular, since workers and firms
made very different decisions in the
two scenarios, the distinction between
the two is essential in tracing the true
sources of job gains.
Another way of seeing the importance of gross worker flows is to notice
the fact that finding a job is not an
easy task. As an example, suppose that
in one part of the country, a shopping
mall is closed, laying off all the workers, while the same kind of shopping
mall is opened in another location far
away. Those who have lost their jobs
may be qualified for jobs at the new
location, but they may not be able to
find those new job opportunities. Even
if they do, they may not want to move
to the new location for one reason or
another. Because of the time-consuming nature of finding a job, those workers may be unemployed for a long time.
More generally, if separated workers, whether they quit or were fired,
Business Review Q2 2007 1

could find their next suitable job opportunities immediately, “unemployment” — defined as those who want
a job but do not have one — would
not even exist to begin with. But because reallocating workers across jobs
is time consuming, unemployment
always exists. We can see now that
how smoothly workers are reallocated
across jobs is an important factor in
determining the amount of joblessness
and thus of well-being in the economy.
With the data on gross flows at hand,
we can directly assess the pace of this
time-consuming process. In particular,
the pace of hiring and separation varies systematically with the state of the
economy, as we will see in this article.
Studying these cyclical changes in the
pace of the worker reallocation process
enriches our understanding of the U.S.
labor market.
MAGNITUDE OF GROSS
WORKER FLOWS
Before looking at movements of
gross flows over time, let’s look first at
how large the worker flows are relative to net changes in employment. At
any point in time, workers are either
employed, unemployed, or out of the
labor force. We call this a worker’s
labor market state. Figure 1 summarizes the average monthly worker flows
among the three labor market states
in 2005.2 The numbers in the circles
indicate the stock of workers in each
corresponding state, and the numbers
next to the arrows indicate the size
of the flows.3 People are classified as
unemployed if they do not have a job,
have actively looked for work in the
past four weeks, and are currently
available for work. Those who have
no job and are not looking for one are
counted as not in the labor force. The

2

Figure 1 is based on data presented in my
recent paper with Garey Ramey.

2 Q2 2007 Business Review

FIGURE 1
Average Monthly Worker Flows in 2005

Employed
142 million

4.2 million

1.8 million

2.1 million

Unemployed
7.7 million

3.9 million

1.9 million

1.7 million

Out of the
Labor Force
76 million

Average Net Monthly Employment Growth = 230,000 in 2005
Note: Based on the data constructed by Fujita and Ramey (2006).

figure indicates that there is a flow
into employment not only from those
who are officially unemployed but also
from those who are out of the labor
force. This flow looks strange because
those who are out of the labor force
are, by definition, not looking for jobs.

3

The data in the figure are originally taken
from the Current Population Survey (CPS),
which is often referred to as the household
survey, mentioned in the introduction.
The CPS, which is conducted by the BLS,
is the source of the official measures of
unemployment, labor force participation,
and employment. Thus, we can associate the
CPS-based gross flows directly with those
official statistics. Further, we can compute
the long-term and high-frequency (monthly)
gross flows, which are useful in examining the
cyclical regularities of gross flows of workers.
The payroll survey, which was mentioned at
the beginning of the article, is another source
for gauging the national employment outlook.
However, it does not help with the assessment
of gross flows.

However, there are quite a few people
outside the labor force who want a job
but who, for one reason or another, are
not reportedly seeking jobs.4 The CPS
data suggest that this group of workers
accounts for 6.5 percent of total nonparticipants in 2005.
Combining these two sources
produces gross flows of 6 million
workers (or 2.7 percent of the civilian
population of 16 years and older) into
new employment relationships every
month. A somewhat smaller number of
workers separate from their employers,
either becoming unemployed or moving out of the labor force. Although
these numbers are very large, they are
still underestimated relative to the

4

Similarly, there are large flows from
employment not only into unemployment but
also into and out of the labor force.

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“true” gross flows for this reason: They
ignore the employment-to-employment
flows that arise when people switch
jobs without experiencing a period of
unemployment. In fact, in their article,
Bruce Fallick and Charles Fleishman
show that, on average, 2.8 million
workers changed jobs without experiencing unemployment spells in a given
month between 1996 through 2003.
Although the size of employment-toemployment flows is very large, in this
article, we’ll ignore these flows because
they do not affect the change in net
employment, at least in a statistical
sense.
Small Changes in the Pace
of Hiring and Separation Generate Large Swings in Employment
Growth. We can appreciate the size
of the gross flows if we compare them
with the size of net changes in employment. Consider the numbers in 2005.
In that year, according to our data,
average monthly flows out of employment amounted to almost 6 million
workers, whereas the average net
employment growth was only about
230,000 per month. This implies that
a small change in the size of the gross
flows may have a large impact on the
net change in employment. Consider
an example in which, in a particular
month, 6,100,000 workers are hired
and 6,000,000 workers lose their jobs,
so that the net employment gain that
month is 100,000 jobs. Suppose now
that the number of hires decreases 1
percent, to 6,039,000, and the number
of people who lose their jobs increases
1 percent, to 6,060,000. As a result,
the net change in employment becomes negative. As noted earlier, the
presence of large flows in both directions indicates that firms and workers
face diverse economic situations. An
important lesson to be drawn from
this example is that a small shift in the
pace of hiring and separation induced
by some change in economic condi-

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tions, such as a change in a surge in oil
prices or a change in tax rates, could
cause large swings in net employment.
Let’s look at how these flows move in
response to business cycles.
CYCLICAL PROPERTIES OF
TRANSITION RATES
From here on, I will focus on the
transition between unemployment and
employment, ignoring the transition
from out of the labor force into the
labor force. That way, I can focus on
the process of “job loss” (involuntary
separation) and subsequent job finding.
Accordingly, I use the term job loss in
place of separation.
First, note that the stock of
unemployment in a given month is determined by the level of unemployment
in the previous month plus job losses
that occurred in this month minus new
employment relationships formed from

the unemployment pool. Furthermore,
gross flows may be thought of as the
product of the transition rate and the
size of the pool. More specifically, gross
hires can be considered as the product
of the rate at which unemployed
workers find jobs (the job finding rate)
and the size of the unemployment
pool. Similarly, gross job losses can be
expressed as the product of the rate
at which employed workers lose their
jobs (the job loss rate) and the size of
employment.
The Job Finding Rate Is
Strongly Positively Correlated with
Business Cycles. Figures 2 and 3
plot 12-month moving averages of the
job finding rate and the job loss rate,
respectively. Figure 2 shows that, historically, the job finding rate fluctuates
around 30 to 35 percent. This means
that of all unemployed workers, about
30 to 35 percent find their next job

FIGURE 2
Job Finding Rate of Unemployed Workers
Percent
45

40

35

30

25

20

15

1980

1985

1990

1995

2000

2005

Y-axis measures the probability that unemployed workers find jobs. 12-month moving average. The
shaded bars indicate NBER-dated recessions.

Business Review Q2 2007 3

FIGURE 3
Job Loss Rate into Unemployment
Percent
2.8

2.4

2.0

1.6

1.2

1980

1985

1990

1995

2000

2005

Y-axis measures the probability that employed workers lose their jobs, becoming unemployed.
12-month moving average. The shaded bars indicate NBER-dated recessions.

within a month. Another feature we
see in Figure 2 is that the job finding
rate is procyclical; that is, it moves
along with the business cycle, going
up during economic booms and going
down in recessions. (See Explaining
Fluctuations in the Job Finding Rate.)
This feature makes sense because during recessions unemployed workers
have more difficulty finding jobs than
in nonrecessionary times. Also, we can
see that changes in the job finding rate
over business cycles are considerable.
In the most recent recession in 2001,
it fell below 30 percent from a level of
more than 40 percent in the pre-recession period.
The Job Loss Rate Is Trending
Down as Labor Force Attachment
Increases. Now, consider the job loss
rate. Figure 3 shows that the number
fluctuates around a much lower level.

4 Q2 2007 Business Review

To see why there is such a big difference in levels between the job finding
rate and the job loss rate, notice that
the job finding rate is calculated as a
ratio to the unemployment pool and
the job loss rate is computed as a ratio
to the employment pool. Obviously,
the size of the employment pool is
much larger than the size of the unemployment pool. Thus, the level of the
job loss rate is much lower than that
of the job finding rate. A noticeable
fact about the historical trend of the
job loss rate is that it has been drifting downward since the late 1980s.
The article by Hoyt Bleakley and
co-authors and one by Robert Shimer
(2005b) point to demographic factors
in explaining this fact: The labor force
has aged in the past two decades. Aging reduces turnover because older
workers are more likely to stay with

a job, and younger workers engage
in much more job shopping. Shimer
also emphasizes the fact that as more
women have participated in the labor
force, women’s labor force attachment
has risen since the late 1980s, and
turnover for men between the ages of
25 and 54 does not exhibit such a decline over this period.
The Job Loss Rate Moves Opposite to Business Cycles. Turning
to how the job loss rate varies over
business cycles, we can see that it
moves countercyclically, which means
that it goes down during booms and
up during recessions. This pattern is
again very intuitive because it implies
that people are more likely to become
unemployed during recessions and
less likely to become unemployed
during booms. Historically, the
cyclicality of the job loss rate was less
pronounced in the two most recent
recessions, compared with the two
recessions in the early 1980s. However,
the job loss rate still exhibits clear
countercyclicality. Steven Davis, Jason Faberman, and John Haltiwanger
highlight two factors that contributed
to the less dramatic increases in the
job loss rate in recent years. The first
is the shrinking employment share of
goods-producing industries. Traditionally, goods-producing industries, in
particular, durable goods industries,
have been more susceptible to recessions than service industries, giving
rise to bursts of employment outflows,
mainly due to layoffs, at the onset of
recessions. Given this pattern, the
declining employment share of the
goods-producing sector reduces the
responsiveness of the job loss rate in
the economy as a whole. The second
factor is the mildness of the two recent
recessions relative to preceding recessions. In particular, the authors point
out that shallow recessions induce only
(disproportionately) small rises in job
loss, whereas deep recessions could

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Explaining Fluctuations in the Job Finding Rate

F

igure 2 in the text shows that the job finding rate for unemployed workers changes dramatically over
business cycles. In the academic literature, researchers often imagine that a large number of job seekers
and employers form “matches” in the labor market and that the speed at which unemployed workers
find jobs is positively influenced by so-called “matching market tightness,” that is, the level of vacant
jobs relative to the number of job seekers. The theory says that when the ratio is high (the matching
market is tight), the rate at which each job seeker finds a job is faster because many vacant positions
are available relative to the number of job seekers. On the other hand, when the labor market is “crowded” with jobless
workers relative to the number of available positions, each job seeker has difficulty finding employment.
Labor market tightness may be measured
by taking the ratio between the number of helpwanted advertisementsa and the number of people
unemployed. Shimer’s article (2005b) shows that
there is, in fact, a stable, positive relationship
between the job finding rate and matching
market tightness. The Figure is a scatter plot of
the two variables, and it displays a strong positive
relationship. Recent studies have devoted much
effort to accounting for the cyclical behavior of
matching market tightness. In particular, many
researchers have investigated the sources of large
fluctuations in firms’ recruiting efforts (represented
by the level of job vacancies) over the business
cycle.b

Relation Between the Job Finding
Rate and Labor Market Tightness
Labor Market Tightness
0.8

0.4

0.0

-0.4

-0.8

a One

may think that the number of help-wanted
advertisements is a poor approximation of actual job vacancies.
For example, each newspaper ad includes multiple job offers,
and the number of help-wanted advertisements may reflect
only a small fraction of actual job openings, especially since
recruitment methods have been shifting toward Internet
job postings in recent years. However, there is quite a bit of
evidence that the cyclicality of the series tracks that of actual
vacancies well. See Katharine Abraham’s article and the 2005a
article by Robert Shimer.
b

FIGURE

-1.2
-0.5

-0.4

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

0.4

Job Finding Rate

Each variable is logged first and then detrended by regressing it on time
polynomials of up to second order. Each axis therefore measures deviations from the trends in log scale. For example, “0.1” means the data are
higher than the trend level by approximately 10 percent.

For example, see the study by Robert Hall (2005b).

induce (disproportionately) sharp increases in job loss.
Which Is More Volatile: Job
Finding Rate or Job Loss Rate? So
far, I have shown that the job finding
rate is procyclical and the job loss rate
is countercyclical, both of which are
intuitive phenomena. But which is
more volatile? In my paper with Garey
Ramey, we compute standard deviations of the business cycle components

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of the two series. Since the two data
series have different average levels, we
take the logarithm of the series first
and then use a method called bandpass filter to isolate only the variations that are useful for business cycle
analysis.5 Figure 4 plots the isolated
business cycle movements of the two
series. Although both of the series are
volatile,6 it looks like the job finding
rate is somewhat more volatile than

5

To extract the business cycle movements of the
data, we use the band-pass filter developed by
Marianne Baxter and Robert King. Intuitively,
it takes a two-sided moving average of the
series, but instead of taking a simple average
with equal weights, the weights are computed
in a way that isolates the business cycle
movements of the data.

6

In the paper, we show that the standard
deviations of the two series are much larger
than those of the index of industrial production,
a typical measure of the economy’s production
activity.

Business Review Q2 2007 5

FIGURE 4
Business Cycle Movements of Job Finding and
Job Loss Rates
0.2

Job loss rate

0.1

0

-0.1

-0.2

Job finding rate

80

82

84

86

88

90

92

94

96

98

00

02

Business cycle component is extracted by using a method called the band-pass filter developed by
Baxter and King (1999). The shaded bars indicate NBER-dated recessions.

the job loss rate. In fact, the standard
deviation of the job finding rate is 35
percent more volatile than that of the
job loss rate. Does this mean that the
job finding rate is more important in
explaining the unemployment rate?
Not necessarily.
To see why, recall that the
changes in unemployment equal the
number of workers who have lost jobs
minus the number of workers who have
found jobs. Also, remember that the
number of job losses can be expressed
as the product of employment and
the job loss rate, and similarly that
the number of hires can be expressed
as the product of unemployment and
the job finding rate. What I have
compared here is the volatility of the
two transition rates, and what matters
for the change in unemployment is
the difference between the number of
gross job losses and hires. Importantly,

6 Q2 2007 Business Review

the pool of employment is much larger
than the pool of unemployment: In
recent U.S. history, the unemployment
rate has been less than 10 percent
most of the time; thus, the rest of
the workers in the labor force are
employed. This fact implies that even
a small change in the job loss rate will
have a big impact on the number of
job losers, whereas a large change in
the job finding rate will not necessarily
result in large changes in the number
of hires.
CYCLICAL PROPERTIES OF
GROSS FLOWS
To take into consideration the
difference in pool sizes, our paper also
computes the volatility of the business
cycle movements of gross job losses
and hires. The result shows that gross
job losses are almost 40 percent more
volatile than gross hires. This indicates

that the larger pool size produces
greater volatility in job losses, even
though the job loss transition rate
fluctuates less than the job finding
transition rate.
The Number of Hires Increases
in Recessions. Our paper also points
to another piece of evidence that
indicates that fluctuations in the job
loss rate are more important than the
job finding rate in thinking about
the driving force behind unemployment. To see this, Figures 5 and 6 plot
gross job losses and hires, respectively.
Figure 7 displays the business cycle
movements of the two gross flow series
together. Not surprisingly, these figures
show that job losses rise during recessions. However, somewhat surprising
is the fact that the number of hires
also tends to increase during recessions. This is less intuitive because
the job finding rate decreases by a
large amount, as we saw above, but
nevertheless the data indicate that the
number of hires increases during times
when economic activity is sluggish.
This pattern indicates that job
loss is more important in driving unemployment fluctuations. Consider
a thought experiment where the job
finding rate does not move at all,
whereas the job loss rate goes up in
response to some kind of recessionary
pressure, such as a slowdown in the
housing market or higher oil prices.
In this hypothetical case, the increase
in the job loss rate is indeed the driving factor of labor market adjustments
because the job finding rate is not
moving. After the increase in the job
loss rate, the number of job losses increases and thus unemployment goes
up. However, those unemployed workers find jobs at the same rate as before.
Because the increased job losses result
in there being more job seekers (unemployment), the number of hires surely
increases as well. This pattern of adjustments is consistent with the behav-

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ior of the data described above. On the
other hand, the actual behavior of the
data is not replicated in the opposite
thought experiment where the job loss
rate is assumed fixed and the job finding rate moves as observed. In this opposite case, the lower job finding rate
induces fewer hires, failing to replicate
the observed pattern. The fact that the
pattern of labor market adjustments
can be reconciled only in the first case
suggests that the job loss rate is likely
to be playing a more important role in
unemployment fluctuations.

FIGURE 5
Gross Job Losses as Percent of
Working-Age Population
Percent
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8

78

80

82

84

86

88

90

92

94

96

98

00

02

04

Y-axis measures the number of employed workers who become unemployed each month, expressed
as a percent of 16+ population. 12-month moving average. The shaded bars indicate NBER-dated
recessions.

FIGURE 6
Gross Hires as Percent of
Working-Age Population
Percent
1.8
1.7
1.6
1.5
1.4
1.3
1.2

TIMING OF CHANGES IN
JOB LOSS AND JOB FINDING
RATES: JOB LOSS RATE MOVES
FIRST
Another important dimension
we can investigate is the timing of
changes in the variables of interest.
My paper with Garey Ramey also computes another kind of statistic called
cross-correlation coefficients. This statistic, simply a correlation coefficient
between the two series, is computed by
shifting one of the data series forward
or backward. The correlation coefficient can be computed for each length
of the shifts in the data series. In our
paper, we compute cross correlations
of each series plotted in Figures 4 and
7, with respect to the business cycle
component of the index of industrial
production, an often-used indicator of
the business cycle.
Cross correlations between the job
loss rate and the business cycle indicator reveal that the negative correlation
between the two series is strongest
when the job loss rate is lagged by
three months,7 indicating that the job
loss rate starts to rise earlier than the

1.1
1.0

78

80

82

84

86

88

90

92

94

96

98

00

02

04

Y-axis measures the number of workers who are hired from the unemployment pool each month,
expressed as a percent of 16+ population. 12-month moving average. The shaded bars indicate
NBER-dated recessions.

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7
Because the job loss rate is high when the
business cycle indicator is low and low when
it is high, the correlation coefficients are
always negative. Thus, “lowest” means that the
negative relationship is strongest between the
two variables.

Business Review Q2 2007 7

FIGURE 7
Business Cycle Movements of
Gross Job Losses and Hires
0.2

Gross job losses

0.1

0

-0.1

-0.2

Gross hires

80

82

84

86

88

90

92

94

96

98

00

02

Business cycle component is extracted by using a method called the band-pass filter developed by
Baxter and King (1999). The shaded bars indicate NBER-dated recessions.

production measure starts to decline.
Moreover, the negative correlation is
very strong (the lowest correlation is
-80 percent). On the other hand, cross
correlations between the job finding
rate and the business cycle indicator
achieve the highest level of 80 percent. However, this occurs when the
job finding rate is shifted forward two
months, implying that the movements
of the job finding rate trail the business cycle indicator.
We also conduct the same calculations using the business cycle components of gross job losses and hires with
respect to the business cycle indicator. As noted above, both of these
series tend to go up during recessions;
therefore, the cross correlations are
negative. However, a noticeable fact is
that gross job losses lead the business
cycle indicator, whereas hires trail the
business cycle indicator. This pattern

8 Q2 2007 Business Review

is also consistent with the view that
job loss plays a key role in labor market
adjustments.
CONCLUSION
In this article, I first showed that
there are large flows of workers behind the net changes in employment
and unemployment. I then discussed
driving forces behind fluctuations in
unemployment. Based on the evidence
presented in my paper with Garey Ramey, I summarized the business cycle
characteristics of labor market adjustments as follows: (1) During recessions, the job loss rate goes up sharply,
whereas the job finding rate plunges.
(2) At the same time, both gross job
losses (flows into unemployment from
employment) and gross hires (flows
into employment from unemployment)
increase. The fact that gross hires go
up when the economy is sluggish can

be understood by noting that the size
of the unemployment pool is larger
in those times. This “pool size effect”
outweighs the declines in the job finding rate. (3) The job loss rate and gross
job losses start to react to recessionary
pressures early in the business cycle,
while the job finding rate and gross
hires react later.
These findings strongly counter
the view put forth by Robert Shimer
(2005b) and Robert Hall (2005a) that
emphasizes fluctuations in the job
finding rate in accounting for fluctuations in unemployment.8 Undoubtedly,
fluctuations in the job finding rate are
important. However, it is misleading to
dismiss changes in the job loss rate. In
fact, our findings indicate that job loss
is actually a more important factor.
Clearly, our statistical portrait of
the worker reallocation process adds
to the understanding of the sources of
unemployment fluctuations. However,
the simple analysis here has a number
of limitations. One is that I look at
the data as if everybody in the labor
force faces the same job loss and job
finding rate. This is problematic because workers are different along many
dimensions. For example, as shown in
my paper with Ramey, the labor force
adjustment process is very different
between young workers and prime-age
workers. (See Differences Across Demographic Groups.) Another missing
piece of the analysis is how worker
reallocation interacts with workers’
wages and productivity. For example, I
emphasize the fact that the number of
hires increases during recessions, but
the discussion ignores what kinds of
jobs those initially displaced workers
end up with. These issues are important topics for further research. BR
8

For example, Robert Hall says in his article
(2005a) that “recessions do not begin with
a burst of layoffs. Unemployment rises
because jobs are hard to find, not because an
unusual number of people are thrown into
unemployment.”
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Differences Across Demographic Groups

I

n my paper with Garey Ramey, we
conduct the same analysis as in the
main text after breaking down the
data into different demographic
groups. We find that there is a large
difference in the labor adjustment
pattern across young workers and prime-age workers
when we incorporate the transition rate into and out
of the labor force.*
We find that all three points in the conclusion
to the main text strongly hold among primeage (25-54) male workers. For example, the
countercyclicality of the job loss rate is very strong
for these workers (Figure A). On the other hand,
for young workers (16-24), movements of the job
loss rate become less clear (Figure B). It no longer
shows a clear pattern with respect to business cycles.
Comparing the two figures, we can further see
that the job loss rate among young workers is much
higher than that among prime-age male workers,
indicating an important difference in labor force
attachment between these groups of workers. Our
paper further shows that for young workers, gross
hires go down in recessions as opposed to the overall
picture. These characteristics in the data for young
workers are consistent with the idea of job shopping,
whereby young workers pass rapidly through multiple
jobs over a short period of time, and this process is
driven by firms’ hiring attitudes.
The contrast of the worker reallocation process
between prime-age workers and young workers may
further indicate that different labor market policies
should be adopted for each group of workers. For
example, prime-age workers tend to be attached to
long-term, high-wage jobs, and thus, job loss induces
larger welfare losses for these workers. Therefore,
a policy to reduce job losses during recessions may
potentially be important. For young workers, a
policy to expand available job opportunities during
downturns may be effective.

FIGURE A
Job Loss Rate (Prime-Age Male Workers)
Percent
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0

1980

1985

1990

1995

2005

2000

Y-axis measures the probability that prime-age (25-54) employed
workers go to the unemployment pool or out of the labor force.
12-month moving average. The shaded bars indicate NBER-dated
recessions.

FIGURE B
Job Loss Rate (Young Workers)
Percent
15

14

13

12

11

1980

1985

1990

1995

2000

2005

*

The labor force consists of those who are employed and are looking for jobs (unemployment). Thus, when workers lose (or quit) their
jobs and do not look for new jobs, they are considered to be out of
the labor force. Remember that the analysis in the text focuses on
the transition between employment and unemployment.

www.philadelphiafed.org

Y-axis measures the probability that young (16-24) employed workers go
to the unemployment pool or out of the labor force. 12-month moving
average. The shaded bars indicate NBER-dated recessions.

Business Review Q2 2007 9

REFERENCES

Abraham, Katharine. “Help-Wanted
Advertising, Job Vacancies, and
Unemployment,” Brookings Papers on
Economic Activity 1987, 1 (1987).

Fujita, Shigeru, and Garey Ramey. “The
Cyclicality of Job Loss and Hiring,” Federal
Reserve Bank of Philadelphia Working
Paper 06-17 (2006).

Hall, Robert. “Employment Fluctuations
with Equilibrium Wage Stickiness,”
American Economic Review, 95 (2005b), pp.
50-65.

Bleakley, Hoyt, Ann Ferris, and Jeffrey
Fuhrer. “New Data on Worker Flows
During Business Cycles,” Federal Reserve
Bank of Boston, New England Economic
Review (July/August 1999).

Fallick, Bruce, and Charles Fleishman.
“Employer-to-Employer Flows in the U.S.
Labor Market: The Complete Picture
of Gross Worker Flows,” Finance and
Economics Discussion Series 2004-34,
Board of Governors of the Federal Reserve
System (2004).

Shimer, Robert. “The Cyclical Behavior
of Equilibrium Unemployment and
Vacancies,” American Economic Review, 95
(2005a), pp. 45-49.

Davis, Steven, Jason Faberman, and John
Haltiwanger. “The Flow Approach to
Labor Markets: New Data Sources, MicroMacro Links, and the Recent Downturn,”
IZA Discussion Papers 1639 (2005).

10 Q2 2007 Business Review

Shimer, Robert. “Reassessing the Ins and
Outs of Unemployment,” Working Paper,
University of Chicago (2005b).

Hall, Robert. “Employment Efficiency and
Sticky Wages: Evidence from Flows in the
Labor Market,” Review of Economics and
Statistics, 87 (2005a), pp. 397-407.

www.philadelphiafed.org

Collecting Consumer Debt in America
BY ROBERT M. HUNT

W

hy should economic scholars study the
consumer debt collection process? First,
the cost and effectiveness of the collections
process has implications for the pricing
and availability of consumer credit. Second, changes
in technology and the structure of credit markets have
transformed the collections industry. Small mom-andpop operations are increasingly being replaced by firms
operating nationally, collecting on billions of dollars in
bad debt purchased from creditors. In this article, Bob
Hunt explores how creditors and their agents attempt to
collect past-due consumer debt, particularly unsecured
debt. Creditors have a number of remedies open to them,
but their effectiveness is limited by the fact that consumers
can file for bankruptcy. Even outside of bankruptcy,
consumers enjoy a variety of legal protections, including
some they may not be aware of.

When consumers fall behind on
their bills, their accounts are eventually sent to collections. Most lenders
and some nonfinancial businesses have
their own collection departments, but

Bob Hunt is a
senior economist
in the Research
Department of
the Philadelphia
Fed. This article
is available free
of charge at www.
philadelphiafed.
org/econ/br/index.
html.
www.philadelphiafed.org

they also farm out collection work to
independent contractors (collection
agencies). Federal, state, and local governments are also increasingly turning
to such agencies to collect past-due
loans, taxes, and other fees. More
recently, creditors have begun selling
off some of their poorly performing
accounts to firms that specialize in
collecting debts.
All in all, consumer debt collection has become a big business. In
2005, third-party debt collectors recovered $51 billion in delinquent debts of
all kinds, returning $39 billion to their
clients.1 They employ over 130,000

workers. Two-thirds of industry revenues are derived from collecting
debts owed by consumers. For example,
collection firms are actively seeking
recoveries on $200 billion in defaulted
credit card debt. Today, debt collectors
contact consumers over 1 billion times
a year.
The effectiveness of the collection
process has implications for the pricing
and availability of consumer credit.2
The more difficult (or costly) it is to
ensure that a loan is repaid, the higher
will be the costs of borrowing, and
less credit will generally be available.
But certain collection tactics can be
hard on consumers, and regulations
at the federal and state levels reflect
this concern. Despite these concerns,
the collections industry has received
remarkably little attention from economic scholars.
In this article, we will explore how
creditors and their agents attempt to
collect past-due consumer debt, focusing primarily on unsecured debt.3 For
the most part, they rely on (not so
gentle) persuasion, but they can also
use legal remedies, such as garnishment of wages — a court-sanctioned
deduction from a consumer’s paycheck

1

These statistics are from a recent survey by
ACA International, a collections industry trade
association.
2

There are also effects for firms that do not
receive immediate payment for all the goods or
services they provide to their customers. For
example, hospitals devote significant resources
to collecting unpaid bills that are not covered
by health insurance.

3

For secured debts, the creditor at least has the
hope of recovering the value of the underlying
collateral, such as a car or home. For unsecured
debts, this option is not available.

Business Review Q2 2007 11

that is used to pay an outstanding
obligation. The effectiveness of these
tactics, however, is limited by the fact
that most consumers have the option
to file for bankruptcy. Even outside of
bankruptcy, consumers enjoy a variety
of legal protections, but they may not
be aware of them.
CONSUMERS IN TROUBLE
The total indebtedness of U.S.
consumers in 2006 was about $13 trillion.4 At any point in time, a significant number of consumers are behind
in their debt payments. Between 1992
and 2005, on average, 4 million households were 120 or more days late on
a debt payment (Figure 1). Lenders
must eventually write some of these
debts off their books because it is very
unlikely they will ever be repaid in
full. In 2006, for example, commercial
banks alone charged off $29 billion in
credit card debt.5
Many distressed consumers enter
into bankruptcy in order to discharge
their debts (under Chapter 7) or to
establish repayment plans under the
aegis of a court-appointed trustee (under Chapter 13). Others participate in
debt management plans arranged by a
nonprofit credit counseling organization.6 But many consumers who are
behind on their payments do not seek
bankruptcy protection or, at least, not
immediately. In fact, only one-half (or
less) of credit card debt written off by
banks is triggered directly by a consumer’s filing for bankruptcy.7 Thus,

4
About $9 trillion of this amount represents
mortgages. These numbers are from the Board
of Governors’ Flow of Funds (Z.1) report.

FIGURE 1
Consumers with Serious Delinquencies

Consumers 120 Days or More Late on a Payment

Source: TrenData and author’s calculations

for most borrowers in arrears, there is
a considerable period in which creditors and their agents seek to recover
past-due debts using persuasion as well
as the contractual and legal remedies
available. For secured loans, this can
mean foreclosure proceedings or repossession. For unsecured loans, the legal
remedies include court judgments and
garnishment of wages.
Since the relevant law varies considerably across states, the effectiveness
of these remedies varies as well. State
laws have also changed over time or,
in a few cases, have been superseded
by federal law. A number of economic
studies, which are described later, have

5

These are the banks’ gross losses. They do
not reflect any recoveries from their collection
efforts.

6

For more information on the role credit counselors play, see my 2005 Business Review article.

12 Q2 2007 Business Review

7
See the article by Michele White and the article by Lawrence Ausubel and Amanda Dawsey.

found that these variations across
states or time may be reflected in the
pricing and availability of credit.
WHAT IS THE DEBT
COLLECTION INDUSTRY?
Creditors allocate significant
resources to in-house collection departments with the goal of bringing
their customers current or minimizing
the losses on debts that will go bad.
In-house collections tend to focus on
short-term delinquencies. If they are
unable to collect these short-term delinquencies, these accounts are eventually sent to third-party collectors, who
are compensated with a share of the
recoveries they obtain. In the case of
credit cards, for example, creditors typically hire third-party collectors at 180
days, the point at which the creditor
charges off the balance. But creditors

www.philadelphiafed.org

and other firms also sometimes rely on
outside firms to assist in collections
before chargeoff.
We do not know for certain
why creditors choose to outsource a
significant share of their collections
work, but this pattern has existed for
a very long time.8 It may simply be an
example of the economics of specialization — firms focused exclusively on
collections may somehow be better at
it. They may enjoy superior technology, or they may be better at attracting
employees who are especially adept
at collections. A specialized firm may
provide better incentives than a collections department in a larger organization that pursues many other objectives. Lenders may also worry more
about risks to their reputation resulting from an aggressive collection strategy than a third-party firm specializing
in the task. Finally, creditors usually
place debts for collection only after
their own efforts have failed. Perhaps
another organization, with a different
approach, will have more success.
In 2004, more than 450,000
people in the U.S. were employed as
bill and account collectors. Collection agencies alone employed 94,000
debt collectors (21 percent of the total). Other leading employers include
providers of financial services (20
percent), providers of health care (15
percent), and wholesalers and retailers
(13 percent).9
In 2002, approximately 5,250
firms operated as third-party debt collectors. In total, they employed about
130,000 people and generated sales of

FIGURE 2
Customers of Third-Party Debt Collectors
(percent of revenues, 2002)

Health-Care Providers
28%

Source: Census Bureau and author’s calculations

ments. Firms engaged in retail and
wholesale trade account for about a
quarter of the industry’s revenues.
Statistics compiled by ACA International, an industry trade association,
provide an interesting peek under the
hood of the collections business.12 The
median firm generated an impressive
$402,000 in collection revenues for
each full-time collector it employed in
2005. This amount was generated by
making relatively small collections (a
median of $68) on a very large number

William Krumbein’s article dates the separation of lending and collections in the U.S. to
1880, or even earlier.

about $8.5 billion ($5.9 billion from
collecting on consumer debts). By
2005, total revenues were $11.4 billion.
This is a growth industry. Between
1982 and 2002, total household debt
adjusted for inflation doubled. Collection industry revenues (adjusted
for inflation) increased 3.6 times and
employment 2.5 times.10
Third-party debt collectors serve
a diverse set of customers (Figure 2).
In 2002, health-care providers represented the most important group of
customers, accounting for more than
a quarter of all revenues.11 Financial
institutions account for a smaller share,
but, of course, many of these firms also
maintain their own collections depart-

9
Issuers of credit cards alone employed nearly
18,000 collectors, 4 percent of the total. These
data are from the Bureau of Labor Statistics’
National Employment Matrix and Occupational
Employment Statistics.

10
These statistics are derived from the Census
of Services and the Services Annual Survey.

12
These statistics are from ACA’s 2005 Benchmarking Survey.

8

www.philadelphiafed.org

11

The significance of this industry is underscored by the fact that the majority of references
to accounts in collection in consumer credit
bureau files are associated with medical bills.
The second leading category is utility bills. See
the 2003 article by Robert Avery and his colleagues.

Business Review Q2 2007 13

of small accounts (with a median balance of about $440). More than twothirds of this amount was returned to
the creditor (the median commission
was 28 percent). After deducting the
firms’ expenses (a median of $17 per
account), the median profit on an account was about $2.
While the typical collection
agency remains small, the industry
has become more concentrated over
time. The four largest firms took in 19
percent of industry receipts in 2002,
compared with 11 percent in 1987.
The largest firms generate at least $100
million in revenue and employ more
than 1,400 people each. A number of
these firms are publicly held corporations. Since the early 1990s, these
firms have increased their dominance
of the industry (Figure 3). Given this
rising concentration, we might expect the total number of active firms
to decline. But in this industry, the
number of firms and establishments
has remained remarkably stable over
time, suggesting significant ongoing
entry into the collections business. In
addition, many of the large collection
firms outsource some of their work to
smaller organizations.
One factor that may be contributing to the increasing scale of collection
firms is the consolidation of consumer
credit among the largest lenders in the
country. For example, over the last decade, the share of credit card balances
held by the four largest card-issuing
banks has risen from just over 25 percent to over 85 percent.13 With every
merger or sale of a credit card portfolio,
there are fewer banks looking for collection services. Over time, these creditors have found it more convenient to
work with fewer collection agencies,
each collecting on a much larger number of accounts. A similar trend seems

FIGURE 3
Size Distribution of Collections Firms
Share of industry receipts
(Percent)
30
1987

25

1992
1997
2002

20

15

10

5

0

5<

5-9

10-19

20-49

50-99

100-249

250-499 500-999

1,000+

Employees

Source: Census Bureau and author’s calculations

to be developing among law firms that
specialize in collections-related legal
services on behalf of creditors.14
Buying and Selling Bad Debt.
Traditionally, third-party debt collectors have worked almost exclusively on
a commission basis, essentially sharing
any recoveries with the creditor. But
this began to change during the 1990s.
Creditors began to sell their bad debt
outright to firms, and this market has
grown dramatically over time (Figure
4). Creditors also enter into agreements to sell a volume of bad debts to
a debt buyer at specified intervals in
the future.15

The outright sale of nonperforming consumer loans was stimulated in
part by regulators responding to the
savings and loan crisis of the 1980s.
As many thrifts failed, their assets
were transferred to the Federal Deposit
Insurance Corporation (FDIC). The
FDIC and the Resolution Trust Corporation (RTC) began to sell off portfolios consisting of nonperforming loans,
typically secured by commercial real
estate. But the FDIC also found itself
managing portfolios of nonperforming
consumer loans, and these took up a
disproportionate share of its managerial resources. So the FDIC sought out
private buyers for those assets.16 Over
time, these agencies were able to devel-

14

See, for example, the 2005 article by Darren
Waggoner and the 2006 article by Jane Adler.

13

This statistic is the share of card debt among
banks and thrifts that file Call Reports.

14 Q2 2007 Business Review

15

These are called forward flow contracts. See
the article by Kate Fitzgerald.

16

See Chapter 12 of the FDIC’s book Managing
the Crisis.

www.philadelphiafed.org

FIGURE 4
Sales of Bad Consumer Debt (face value)

Source: The Nilson Report

op a significant market for small loans.
Between 1986 and 1994 the FDIC sold
some $20 billion (face value) of these
portfolios.
A little more than a decade later,
in 2005, $128 billion (face value) in
nonperforming consumer debt in
the U.S. was sold. Two-thirds of this
amount ($88 billion) was defaulted
credit card debt. Most of the bad credit
card loans ($65 billion in face value)
were sold directly by card issuers; the
remainder was debt exchanged between different debt buyers.17 Card issuers received about $3 billion, roughly
4.5 cents for each dollar of face value,
for the defaulted loans they sold in

17
Bad debt is often sold more than once, typically at ever lower prices, as different buyers try
to succeed where their peers have failed.

www.philadelphiafed.org

2005. Debt buyers currently hold about
$170 billion (face value) in uncollected
credit card debt that is less than five
years old (when legal remedies are typically no longer available).
While there are well more than
100 prospective buyers of bad consumer debts, the actual purchase volume
is relatively concentrated. In 2004, for
example, the 10 largest organizations
accounted for the majority of all bad
debts purchased and two-thirds of the
bad credit card loans purchased.18 A
number of the largest debt buyers are
publicly held firms, and these alone
account for at least one-fifth of debt
purchases. To enhance their resources,
a number of these firms issue securi18
The statistics in this and the preceding paragraph are from The Nilson Report, Nos. 806,
835, and 857.

ties backed by collections on the debt
they have acquired. The growth of this
market has also been stimulated by a
significant inflow of capital from Wall
Street.19 This, in turn, has stimulated
demand for defaulted credit card portfolios, driving up prices and inducing
debt buyers to seek out alternative
portfolios, such as debts owed to hospitals. In a similar cycle, during the
1990s, some large purchasers of debt
were unable to collect enough from
the accounts to justify the prices they
paid for the debt. They eventually
failed, and competitors absorbed their
assets.20
Changes in Technology. The
keys to collecting bad debt have not
changed over the last 30 years: (1)
locating the debtors and (2) efficiently
distinguishing between those consumers who can’t pay because they lack the
resources to do so and those who won’t
pay even if they have the resources to
make at least a partial payment. What
has changed is the technology available to collection workers.
Thirty years ago, collectors
worked primarily with paper records,
typewriters, and telephones. The
advent of affordable long-distance services (WATS lines) in the 1970s represented a major advance, permitting
firms to collect accounts over greater
distances at lower cost. Another advance was the automated dialer: A
computer dials the numbers of delinquent consumers more rapidly than
humans can and routes the calls that
are answered to collectors organized
into a call center.21 This significantly

19

In 2004-05 collection firms raised $500 million from equity issues alone. See the article by
Joe Chumbler.

20

See the 2005 article by Jane Adler and the
2006 article by Darren Waggoner.

21
The Nilson Report No. 558 (1993) identifies
Don Thorne as the inventor of this technology,
which emerged around 1973.

Business Review Q2 2007 15

increases the number of consumer
contacts a collector can make in an
eight-hour shift.
Over time, these systems have
become more and more sophisticated
(the latest generation machines are
called predicative dialers). Computers determine the number of calls to
make based on the time of day, the
number of collectors logged on to the
system, and variations in their average time speaking with consumers.
These calculations are more accurate
when more collectors are used and,
combined with the high fixed costs of
such systems, may explain part of the
increasing scale of collection agencies.
The latest systems are also integrated
with the agency’s consumer account
systems and other programs. Today, a
number of the largest agencies have
call centers located in other countries
and are experimenting with Internet
technology that permits collectors to
work from home.22
Three decades ago, a leading
textbook described the collections
problem in the following terms: “Collection work would be easier and the
results better if there were some magic
way in which each account could be
immediately and accurately classified
as to the reason for nonpayment and
the collection method which would
be most effective with that particular
debtor. Sorting devices to perform
such miracles unfortunately are not yet
available.”23
Since then, the industry has
worked hard to develop better sorting technologies. Collection records
are now computerized. Advances in
information technology have made
the process of skip tracing — locating
a current address or phone number of

22

See the 2003 article by Jane Adler.

23

See p. 371 of the book by Robert Cole.

16 Q2 2007 Business Review

a consumer — more efficient. Techniques developed to quantify the risk
of borrower default (credit scoring) are
now being applied to evaluating the
prospects for successful collections of
individual accounts and the pricing of
entire portfolios.24 Given that collectors are generally able to obtain payments on only a small fraction of their

erable resources and investments in
technology to separate the two groups
based on the information they can collect (see the preceding section). Second, they apply additional pressure on
consumers, essentially increasing the
implicit cost of not repaying one’s debt.
This may induce those who won’t pay
to change their minds. But this also

To be effective, collectors must be able to
distinguish consumers who can’t pay from
those who won’t pay even though they have
the resources to do so.
accounts, it is extremely important
to know how to allocate collection
resources across accounts. Among the
accounts that do end up being paid,
most are the result of an improvement
in the borrower’s financial condition,
which can often take years. Thus, the
ability to locate a delinquent borrower and monitor changes in his or
her financial condition three or five
years after the initial default can be
extremely valuable.
REGULATING THE DEBT
COLLECTION PROCESS
To be effective, collectors must
be able to distinguish consumers who
can’t pay from those who won’t pay
even though they have the resources
to do so. The problem that collectors
face, however, is that consumers in
these two categories look very much
alike because those who won’t pay
have an incentive to present themselves as consumers who can’t.
Collectors respond to this problem
in two ways. First, they devote consid-

24

See the article by Amita Chin and Hiren
Kotak, the article by Joanne Cleaver, and the
one by Peter Lucas.

imposes additional distress on those
who really cannot pay.25
There is a related problem: Outside of bankruptcy, creditors have an
incentive to race for the consumer’s
limited assets or income. When it
becomes clear that a consumer is having difficulty paying his or her debts,
creditors become concerned about
their priority: What is the order in
which creditors will be repaid from the
consumer’s assets or a garnishment of
his or her wages? Knowing that other
creditors are doing the same, each
creditor has an incentive to seek immediate repayment of its debt even if
it comes at the expense of other creditors or induces a sale of the consumer’s
assets at fire-sale prices.26 Under these
circumstances, creditors and their
agents have a natural incentive to be
aggressive in their collection efforts at
the expense of both the consumer and

25

For a thoughtful discussion of this problem,
see the article by Arthur Leff. For real world
examples, see the 1977 and 1992 congressional
hearings on the Fair Debt Collection Practices
Act.
26

This phenomenon is explored in the book
by Thomas Jackson and the one by Winton
Williams.

www.philadelphiafed.org

his or her other creditors.
These problems can be mitigated.
With the assistance of a nonprofit
credit counselor, consumers can work
out a debt management plan with their
creditors. Alternatively, consumers can
file for bankruptcy.27 The immediate
effect of a bankruptcy filing is that
it forces creditors to cease collection
efforts. The court then works out a
plan for liquidating the consumer’s
nonexempt assets (Chapter 7) to
pay the creditors or, alternatively, a
plan for using the consumer’s future
income to repay some of his or her
debts over time (Chapter 13). In either
case, unsecured creditors are likely to
lose some, perhaps all, of the principal
loaned. The consumer will carry a
bankruptcy flag on his or her credit
report for 10 years.
Unfortunately, debt management
plans are not always successful. And,
as noted above, consumers often do
not immediately file for bankruptcy
— sometimes because they can’t.28
Thus, a rationale for government regulation of collection activities directed
at consumers follows from these arguments: (1) there is excessive racing
in collections by unsecured creditors,
(2) creditors cannot easily distinguish
between those who can’t pay and those
who simply won’t pay, and (3) consumers are either unwilling or unable to
file for bankruptcy.
First Steps Toward a Federal
Role. Until the end of the 1960s, the
regulation of consumer debt collection outside of bankruptcy was done

almost exclusively at the state or local
level. But this soon began to change,
perhaps because of the development of
the credit card market and, more generally, the gradual evolution toward a
national market for consumer credit.29
One of the first assertions of a
federal role occurred in 1968 when
the Federal Trade Commission (FTC)
published guidelines describing explicit
collection practices it deemed to be
unfair or deceptive trade practices and

Until the end of the
1960s, the regulation
of consumer debt
collection outside of
bankruptcy was done
almost exclusively
at the state or local
level.
therefore subject to prosecution. In the
20 years ending in 1977, the FTC filed
cases against approximately 10 collection agencies a year.
In 1970, a federal ceiling on wages
subject to garnishment (at most 25
percent of take-home pay) went into
effect.30 The Fair Credit Reporting
Act of 1970 limited how long adverse
repayment behavior could be included
in a credit report and provided a process for disputing inaccurate information contained in a consumer’s credit
report.31 In 1974, Congress passed the
Fair Credit Billing Act — another

27

For a discussion of the purposes and design
of consumer bankruptcy law, see the Business
Review article by Loretta Mester. The federal
bankruptcy law was amended in 2005. For
details, see the First Quarter 2005 issue of the
Federal Reserve Bank of Philadelphia’s Banking
Legislation and Policy.

28

Under U.S. law, consumers can obtain a discharge of their debts under Chapter 7 only once
in eight years. There are also limitations on the
frequency of discharges under Chapter 13.

www.philadelphiafed.org

29

For a description of the evolution of the credit
card market, see the book by Joseph Nocera
and the one by David Evans and Richard
Schmalensee. In recent years, a similar process
has occurred for residential mortgages.

30

Title II of the Consumer Credit Protection
Act of 1969 (Public Law 90-321, 15 USC 1601).
At the time of enactment, this protection was
more generous than what was available under
the laws of about 25 states.

reaction to the rapid and sometimes
clumsy growth of the market for general-purpose credit cards.32 This law
establishes a process for consumers
who have disputed billing errors on
their credit card accounts. Until the
billing error is resolved, consumers do
not have to pay the disputed amount
(or interest on that amount), and the
lender is precluded from attempting to
collect on it.
FAIR DEBT COLLECTION PRACTICES ACT (FDCPA) OF 1977
This law establishes a national
floor for consumer protections from
third-party debt collectors. The act’s
general thrust is to prohibit the harassment of consumers and the use of collection practices deemed to be unfair.
(See Fair Debt Collection Practices Act.)
The Federal Trade Commission
(FTC) primarily enforces the act, but
authority is shared with the federal
financial regulators and several other
federal agencies. An important remedy is the right of consumers, either
individually or jointly in a class action,
to sue collectors for (limited) damages arising from violations of the act,
plus reasonable attorney’s fees. Thus,
enforcement need not depend on the
resources or interest of public agencies.
But there are a number of important limitations to the protections
provided under the act. First, debt
collectors are not liable for damages
if they can show that the offense was
unintentional and that they maintain
policies and procedures designed to
avoid such violations. In practice, the
courts have interpreted this exception
relatively narrowly, so there have been
many damage awards over the years.

31
Public Law No. 91-508, 15 USC 1681 et seq. I
review this legislation in my 2002 article in the
Business Review.
32

Public Law 93-495, 15 USC 1666 et seq.

Business Review Q2 2007 17

The Fair Debt Collection Practices Acta

W

hat debts are covered? The act applies
to personal, family, or household debts.

Who is a debt collector? The act
defines a debt collector as any person
who regularly collects debts owed to others. This includes attorneys who collect debts on behalf of
others on a regular basis.
The act does not apply to creditors (or their affiliates)
collecting debts exclusively owed to them. The exclusion also applies to the collection of debts acquired from
another creditor, so long as the debt was not in default at
the time of the sale. But the act applies to a creditor collecting its own debt using a different name, thus giving
the impression that it is a third-party collector.
The act does not apply to process servers or nonprofit
organizations providing bona fide consumer credit counseling services and administering debt management plans
on behalf of the consumer.
May a debt collector contact anyone else about a
consumer’s debt? If the consumer has an attorney, the
debt collector may contact only the attorney, unless the
consumer otherwise consents or his or her attorney does
not respond to the collector’s calls or letters.
If the consumer does not have an attorney, a collector may contact other people, but only to obtain information about the location of the consumer (for example, an
address or a phone number). Collectors usually are prohibited from contacting third parties more than once. In
such communications, collectors must identify themselves
but may disclose the name of his or her employer only if
specifically requested. The collector may not disclose that
the consumer owes a debt.
What information about the debt must be provided to the consumer? Upon initial contact with a
consumer, the collector must indicate it is attempting
to collect a debt and that any information obtained will
be used for that purpose. Within five days of the initial
contact, the collector must send the consumer a written

notice describing the exact amount owed, to whom it is
owed, and that the consumer can dispute this information if he or she believes it is inaccurate. The consumer
has 30 days to dispute this information (in writing). If
the consumer disputes an alleged debt, the collector must
cease collection efforts and verify the accuracy of the
information. The collector may resume its efforts once it
has verified the information and mailed proof of the debt
to the consumer.
When may a collector contact a consumer? Collectors may not contact consumers at unusual times or at an
inconvenient place, without prior consent. Hours between
8 a.m. and 9 p.m. are presumed to be convenient times. A
collector may not contact a consumer at his or her place
of employment if it has reason to know that such communications are prohibited by the employer.
How can a consumer stop the collector from contacting him or her? A consumer (his or her spouse or a
parent of a minor) can terminate a collector’s efforts to
contact him by sending the collector a letter to that effect. Thereafter, a collector may communicate with the
consumer only to indicate that (1) the collector is ceasing
further collection efforts or (2) it (or the creditor) may or
will take a specific action against the consumer (such as a
garnishment of wages).
What types of debt collection practices are prohibited? Debt collectors may not harass, oppress, or abuse
a consumer or any third parties they contact. For example, collectors may not use threats of violence or harm,
publish a list of consumers who refuse to pay their debts
(except to a credit bureau), use obscene or profane language, or repeatedly use the telephone to annoy someone.
A collector may not circulate to any person credit information it knows, or should know, is false. This includes
failing to communicate that a debt is being disputed by
the consumer.
Debt collectors may not use any false representation
or deceptive means to collect or attempt to collect any

a
Public Law No.95-109 (1977). The law in its current form may be found in title 15, section 1692 of the U.S. Code. For more information see the
FTC’s website: www.ftc.gov.

18 Q2 2007 Business Review

www.philadelphiafed.org

debt or to obtain information concerning a consumer.
For example, they may not misrepresent the name of the
collection firm, the amount or legal status of a debt, or
the legal status of forms sent to the consumer. They may
not falsely imply that they are attorneys, government
representatives, or employees of a credit bureau or that
the consumer has committed a crime. A collector may
not threaten to take an action it (or the creditor) does not
intend to take or that is illegal.
A debt collector may not use unfair or unconscionable
means to collect a debt. For example, a collector may not
collect any amount (including any interest, fee, charge,
or expense) that is not expressly authorized by the agreement creating the debt or permitted by law. Collectors
may not deposit a post-dated check prematurely. Debt
collectors may not communicate with a consumer about a
debt via postcard. In letters sent to consumers, collectors
may print only their address on the outside of the envelope.b
In what jurisdiction may a debt collector sue a
consumer? If the loan is secured by real property (a house
or land), the collector must file in the jurisdiction where
the property is located. Otherwise, the collector must file
either where the consumer signed the contract or where
the consumer currently resides.
What remedies are available to consumers? A consumer can sue a debt collector for violations of the act in

state or federal court. The statute of limitations runs for
one year from the date of the violation. Consumers may
recover actual damages and reasonable attorneys’ fees.
The court may award up to $1,000 for additional damages
for individual suits.
The act also allows for class action suits against
debt collectors. In that case damages are capped at the
minimum of $500,000 or 1 percent of the collector’s net
worth. In determining the damages to award, the court
will consider the frequency and persistence of noncompliance, its nature, and whether it was intentional.
A debt collector is not liable for damages if it can
show the violation was not intentional and that it used
procedures reasonably designed to avoid such violations.
If a court finds that a suit was brought in bad faith, to harass a debt collector, the court may require the plaintiff to
compensate the defendant for the (reasonable) attorney’s
fees incurred.
What federal agencies enforce the act? Most debt
collectors may be sued for violations by the Federal Trade
Commission, which may seek civil penalties and injunctions. Other federal agencies are responsible for enforcing
the act among the firms they supervise.c
What about state laws regulating debt collection?
The act sets a floor of consumer protection from debt collectors. States are free to enact protections that are stronger than those provided in the federal law.

b

The envelope can include the name of the firm if it does not suggest that it is in the debt collection business. This restriction also applies to written
communications to third parties.

c

These include the federal regulators of financial institutions, common carriers, and airlines.

More important, the act applies only
to firms collecting debts on behalf of
others — that is, to third-party debt
collectors. The act does not apply to
firms collecting debts owed to them as
long as they use the firm’s name in the
collection process. Thus, most creditors are not considered debt collectors

www.philadelphiafed.org

when they contact their customers
about a delinquency or a default.
Why 1977? Given the long tradition of regulating collection practices
at lower levels of government, it is interesting to ask why Congress decided
to act in 1977. A number of factors
seem important. First, there was con-

siderable interest, and some research,
on consumers having difficulties managing their debt and filing for bankruptcy. Some of the research resulted
from studies commissioned by the
National Commission on Consumer
Finance, which Congress established
when it enacted the Truth in Lend-

Business Review Q2 2007 19

ing Act in 1968.33 Second, many in
Congress believed that the protections
provided by state law were inadequate.
At that time, 13 states had no laws
that applied to debt collectors, and the
laws in another 16 were considered too
weak.34 Finally, advances in telecommunications had reduced the cost of
long-distance business calls, making
it economical for firms located in one
state to collect debts owed by consumers in other states. Few states had the
legal remedies or sufficient resources
to discipline collection firms located
out of state.
Nevertheless, federal legislation
in this area was controversial. Some
viewed the act as an attempt to protect deadbeats that would reduce the
efficiency of the credit market. Others argued it was another instance of
federal intrusion into an area of policy
that traditionally belonged to the
states. The act passed by only one vote
in the House of Representatives.
Protecting Unsophisticated
Consumers. Shortly after the FDCPA
was enacted, the courts developed the
“least sophisticated consumer” standard
to evaluate alleged violations of the
FDCPA.35 This is rather different from
the approach used under many other
federal consumer protection laws that
apply to financial services. For example, laws such as the Truth in Lending
Act or the Real Estate Settlement Procedures Act require that lenders disclose a good deal of information, and it
is assumed the consumer is sufficiently
sophisticated to make use of the information. In ambiguous cases, the

33

See also the study by David Caplovitz and
another by David Stanley and Marjorie Girth,
which influenced the drafting of the Bankruptcy Act of 1978.

34

See Senate Report 95-382.

35

Some courts use a different standard, referring
to an “unsophisticated consumer,” but there is
little practical difference between the two.

20 Q2 2007 Business Review

consumer must demonstrate that the
disclosures were somehow inadequate
and this resulted in a loss to the consumer. In contrast, under the FDCPA,
the question before the court may not
be whether the plaintiff was actually
deceived but rather whether the debt
collector’s action would have confused
“the least sophisticated consumer.”36
Why Exclude Creditors? The
rationale for the distinction between
third-party and first-party collectors
is somewhat convoluted. On the one
hand, if the act had been written to
include creditors, it is likely the bill

The FDCPA acts as
a floor for consumer
protections rather
than as a ceiling.
would not have passed. On the other
hand, a number of participants in the
congressional hearings on the bill argued that the protections were primarily needed to address the activities of
third-party collectors. The FTC took
the position that it was easier for regulators to discipline financial institutions than to discipline debt collectors.
It argued that barriers to entry into the
collections business were so low that
actions taken against existing firms
did little to deter the behavior of new
firms entering the business.
Others argued that financial institutions were already more heavily
regulated, and the limited data available at the time suggested that most
complaints were about the conduct of
the third-party collectors.37 Also, at
that time, consumers borrowed almost

36

This reasoning is contained in the 1991 case
Beattie v. D.M. Collections 754 F. Supp. 383.

37

But the latter claim was disputed at the time
by ACA International (the Association of Credit and Collection Professionals) and others.

exclusively from lenders located in
their state, so it was felt that state laws
would be more effective in disciplining
creditors than debt collectors located
in other states.38 A final bit of reasoning that was influential at the time
was the idea that firms collecting their
own debts were also collecting from
their own customers and would be less
willing to damage these relationships,
or their reputation among potential
customers, by using aggressive collection tactics.39
Changes Since 1977. There have
been relatively few changes to the
act since 1977. The most significant
change occurred in 1986 when Congress eliminated an exception to the
definition of debt collector for lawyers
collecting debts as an attorney on behalf of a client.40
Unlike many other areas of federal
regulation of financial activities, the
FDCPA acts as a floor for consumer
protections rather than as a ceiling.
Thus, states are free to enact protections that are more extensive than
the FDCPA’s and to apply them to a
broader variety of collections activity.
In the nearly 30 years since the enactment of the FDCPA, many states have
adopted more extensive regulation of
debt collection practices. Today, more
than 40 states have laws that apply to
third-party debt collectors, and more
than 30 states have laws that can be
applied to creditors collecting their
own debts.41 Of course, there is still
38

Of course, in just a few years it was common
for consumers to use a credit card issued by a
bank located elsewhere, primarily in Delaware
or South Dakota.

39
Richard Peterson’s 1986 study provides some
evidence that creditors are less willing to use
remedies consumers dislike the most — that
is, unless the remedy is especially effective for
obtaining repayment.
40

Public Law 99-361, 100 Stat. 768

41

For more information on state debt collection
laws, see the article by Elizabeth Bohn and Ari
Gerstin and the book by Robert Hobbs.

www.philadelphiafed.org

considerable variation in the extent of
protections offered at the state level.
Finally, in addition to regulation
of the collections industry, contractual
remedies available to creditors have
also seen changes. After a decade of
deliberations, the FTC issued its credit
practices rule in 1985. Among other
things, this rule made unenforceable
a number of remedies lenders often
included in their consumer credit contracts.42 The FTC ban includes waivers
that permit creditors to automatically obtain a judgment against the
consumer in court or waivers of asset
exemptions provided under state bankruptcy law.43 The rule prohibits creditors from deducting payments from the
employee’s paycheck without his or her
permission and without first obtaining
a court order. The rule also prevents
creditors from obtaining a security
interest in the consumer’s other household goods as collateral for a loan.
A number of studies on the effects
of these contractual restrictions have
produced conflicting results.44 Economists often measure the effects of legal
changes by examining changes in
demand and supply. On the one hand,
reducing the options available to lenders may reduce the likelihood of repayment. This might induce lenders to
charge higher interest rates and offer
less credit than before. In other words,
the supply of credit might fall. As an
example, one study finds that, all else
equal, mortgage loans are 3 percent
to 7 percent smaller in states with a
more lengthy and costly foreclosure

process.45 Another study found that
interest rates on individual personal
loans were higher (and loan amounts
were smaller) in states where a smaller
share of take-home pay was subject to
garnishment.46
On the other hand, consumers
might be unwilling to borrow when
creditors have the option to use remedies they really don’t like. In that
case, restricting some remedies could
increase the demand for credit so long
as consumers are willing to pay for the
protection. One study found that, all

Today, more than 40 states have laws that
apply to third-party debt collectors, and more
than 30 states have laws that can be applied
to creditors collecting their own debts.
else equal, consumers were more likely
to borrow, and borrow more, in states
where less take-home pay was subject
to garnishment, suggesting that at least
some consumers were indeed willing
to pay the additional cost resulting
from the restriction.47
Another interesting finding is that
even in places where these remedies
are available, creditors invoke them
infrequently. One interpretation is that
creditors are unwilling to use remedies
that would damage their reputation
with existing or potential customers.
Another interpretation is that the
remedies were effective in motivating
repayment where it was feasible and,
thus, did not need to be used very
often.48
45

42

See 16 CFR Part 444. These restrictions were
applied to banks under Regulation AA, issued
by the Board of Governors of the Federal Reserve System. A number of these restrictions
were recommended in the 1972 report of the
National Commission on Consumer Finance.
43

In bankruptcy, exempted assets are protected
from creditors. These exemptions are sometimes
important outside of bankruptcy, too.

44
For a recent review of this literature, see the
article by Richard Hynes and Eric Posner.

www.philadelphiafed.org

CONCLUSION
In an article published in 1924,
William Krumbein concluded that
“the large number of delinquent claims
each year assigned to collection agencies indicate the need for some form of
institution as a means of raising capital
through bad debts, or as a means of
reducing the enormous losses from this
source. The question at issue, then, in
considering the present-day collection
agencies, is not whether they can actually justify their existence on economic
grounds, but whether they perform

See the 2005 article by Karen Pence.

46

See the 1983 article by James Barth and his
colleagues and the 1973 study by Douglas Greer.

47

See the 1990 article by Daniel Villegas. Note
that Villegas examined the nonmortgage borrowing of consumers, while the article by Barth
and his colleagues examined the characteristics
of individual loans made by finance companies.
These differences may explain why they obtained different results.
48

See the article by Robert Scott.

their function in such a manner as will
net the largest possible benefit to society as a whole.” The answer, according
to Krumbein, depended on the kinds
of firms that undertook the collections and how the original lenders held
them accountable for their tactics.
That answer remains largely true
today, subject to some qualifications.
First, some collection firms are now
also the owners of the defaulted debt
they seek to recover. Second, the government plays a more active role in
policing collections activity than it did
prior to 1970.
So it is distressing to see a significant increase in consumer complaints
about collections activity in recent
years (Figure 5). In comparison, the
FTC reported receiving about 5,000
complaints about debt collectors in the
years before the passage of the FDCPA,
followed by a decline to about 2,000
a year in 1983. By 1990, complaints
had fallen to about 1,000 a year before
doubling by 1992 — another period of
recession.49
49
See the 1984 testimony of Ann Price Fortney
and the 1992 testimony of David Medine.

Business Review Q2 2007 21

FIGURE 5
Complaints to the Federal Trade Commission
Thousands
80
70
Third Party
In-House

60
50
40
30
20
10
0

1999

2000

2001

2002

2003

2004

2005

2006

Source: Federal Trade Commission and author’s calculations.

The recent increase in complaints
may reflect a number of factors, for
example, the recent recession and the
resulting increase in delinquent debt
flowing to collection departments or
the increased ease with which consumers can register complaints via
the Internet. At this point, we can’t

22 Q2 2007 Business Review

be certain why there are now so many
complaints and why they seem to be
increasing.
Despite the prevalence of consumer collection activity, there is relatively
little economic research on the topic,
and much of what there is dates to the
initial era of federal consumer protec-

tion regulation that began around
1970.50 Economists have tended to
focus on the related question of the
effects of the bankruptcy system, leaving unexplored the question of what
distressed consumers, and their creditors, do outside of bankruptcy. While
there is a rationale for regulating the
consumer collections process, we know
little about the effects of these regulations. Are they too onerous? Are they
too weak? How have creditors, debt
collectors, and consumers responded?
In the three decades since the
FDCPA was passed, consumer credit
and the resulting collections process
have changed considerably. Debt collectors are now big business, some
trading on Wall Street. Lenders are
comfortable selling off their bad debts,
and a relatively deep market for these
assets now exists. The IRS is experimenting with using private firms to
collect some of the $250 billion in delinquent taxes outstanding. The credit
card market is now mature and relatively concentrated. Consumer bankruptcy law has recently been changed.
It would seem this area is ripe for a
new generation of research. BR

50
One exception is the forthcoming article by
Richard Hynes.

www.philadelphiafed.org

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Caplovitz, David. Consumers in Trouble: A
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Adler, Jane. “Alternative Assets,” Credit
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Paul S. Calem, and Glenn B. Canner.
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Manage, and Anthony M. J. Yezer. “The
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Finance, 38 (September 1983), pp. 123351.
Barth, James R., Joseph J. Cordes, and
Anthony M. J. Yezer, “Benefits and Costs
of Legal Restrictions on Personal Loan
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Bohn, Elizabeth M., and Ari H. Gerstin.
“FDCPA Traps for the Unwary Nationwide
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Part II,” American Bankruptcy Institute
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Chin, Amita Goyal, and Hiren Kotak.
“Improving Debt Collection Processes
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www.philadelphiafed.org

Gimme Shelter!
Rents Have Risen, Not Fallen, Since World War II
BY LEONARD NAKAMURA

T

wo recent studies have concluded that for
roughly four decades the measure of inflation
for rents in the U.S. consumer price index
was substantially underestimated. Why should
this mismeasurement be of concern? In this article, Len
Nakamura explains that rents are important in measuring
the price of housing services for homeowners as well as
renters. They are also the main standard against which
market participants and others weigh the reasonableness
of house prices. In addition, such mismeasurement affected
the estimated rate of overall inflation faced by U.S.
households during this historical episode.

Measuring rental inflation accurately is important because rents are
the largest component in the U.S. consumer price index, representing fully
one-third of the consumption basket.
This might seem surprising, since the
U.S. is largely a nation of homeowners, not renters. However, government
statisticians use rents as a proxy for the
price of housing services consumed by
owners, for reasons we explore in this
article. A related reason for accurately
measuring rental inflation is that rents

Len Nakamura
is an economic
advisor in
the Research
Department of
the Philadelphia
Fed. This article
is available free
of charge at www.
philadelphiafed.
org/econ/br/index.
www.philadelphiafed.org

represent the main standard against
which to measure the reasonableness
of house prices.
According to official U.S. data,
while all prices have been rising, rents
have been rising more slowly than
other prices. From 1942 to 2003, rents,
as measured by the U.S. consumer
price index, went up less than ninefold, while the consumer price index,
excluding shelter, went up more than
10-fold. Thus, the ratio of rents to
other prices is 20 percent lower than
it was in the 1940s. However, this
relative decline took place roughly between 1942 and 1985 — a period during which, as two new studies suggest,
rental inflation was underestimated.
Figure 1 depicts this relative decline in
prices by showing the ratio of rents to
other prices, excluding shelter, in the
falling beaded line.
These studies have concluded that

for roughly four decades, from 1942 to
1985, the measure of inflation for rents
in the U.S. consumer price index was
substantially underestimated. My study
with Theodore Crone and Richard
Voith finds an annual understatement
of 1.4 percentage points for the rental
inflation rate, while one by Robert
Gordon and Todd vanGoethem argues
for an understatement of 1.2 percentage points. Over time, these errors
cumulate into large numbers and result
in very different long-term relationships between rents and overall inflation in the U.S. Either set of estimates
indicates that rents have generally risen faster than other prices throughout
the postwar period; our estimates show
rents rising relatively about 50 percent
rather than falling 20 percent, depicted
in the barbed green line.
Because of the large weight of
rents in consumption and the substantial size of the bias, the estimated
rate of overall inflation faced by U.S.
households is visibly affected. One
broad measure of the rate of inflation
faced by households in the U.S. is the
personal consumption expenditure
(PCE) deflator. Many economists
consider the PCE deflator to be the
best overall measure of inflation.1

1
The personal consumption expenditure (PCE)
deflator is produced by the Bureau of Economic
Analysis as part of its quarterly estimates of
gross domestic product from data collected by
other agencies. One of those data-collection
agencies is the Bureau of Labor Statistics, which
is charged with collecting U.S. price data. The
PCE deflator is considered better than the consumer price index for two main reasons. First,
it is a broader measure of inflation that, in particular, includes more services, such as medical
and financial services; second, it is revised historically to be more consistent and to eliminate
past errors.

Business Review Q2 2007 25

FIGURE 1
Two Measures of Relative Rents*
Percent
1.6
1.4

CPI tenant rent measure

1.2
1.0
0.8

New CNV tenant rent measure

0.6
0.4
0.2
0

42

46

50

54

58

62

66

70

74

78

82

86

90

94

98

02

Source: U.S. Bureau of Labor Statistics and Crone et al. (2006).
* Crone, Nakamura, and Voith and Official CPI Measures of Rent Ratio to CPI All Items
(excluding shelter)

From 1942 to 1985, the PCE deflator,
as currently measured, grew at an annual rate of 4.3 percent. If we use our
study’s (Crone, Nakamura, and Voith)
estimate for rents, that deflator’s rate
of increase rises to 4.5 percent per
year. Similarly, the real growth rate of
personal consumption expenditures,
as currently measured, grew at 3.8
percent; as revised, it would fall to 3.6
percent. (Real consumption growth
per capita would fall from 2.5 percent
to 2.3 percent.)
MEASURING INFLATION AND
HOUSING SERVICES
How should we measure the part
of consumer inflation represented by
housing services? In the U.S. consumer price index, produced by the

26 Q2 2007 Business Review

Bureau of Labor Statistics (BLS), and
in the personal consumption expenditure deflator, produced by the Bureau
of Economic Analysis (BEA), tenant
rents are used to measure the price of
housing services. These agencies use
this method, even though the bulk of
housing is occupied by homeowners,
who do not pay an explicit rent. To understand why this practice is standard,
we need to analyze what the resident
of a house consumes. In consumption
terms, economists think of housing
as providing a service: sheltering the
residents and their possessions. This
housing service is distinct from the
value of the house as an investment.
But for homeowners, the house is both
a source of housing services and an
investment. Therefore, to construct

a consumption inflation measure, we
have to somehow estimate the value
of the housing services consumption
component.
Conceptually, a renter and a
homeowner get the same housing
services, regardless of the form of
ownership, if the house is otherwise
the same. The renter pays for the
service directly. So if we can figure
out what the house would rent for,
we would know how much the shelter
services should cost.2 If we are lucky,
we can find a rental unit just like our
house and find out what renters are
actually paying landlords. We can
then use this as an estimate of the
unit’s shelter services. Of course, it is
often not possible to find rental units
precisely equivalent to owner-occupied
ones. But since we are interested in the
rate of inflation, not the level of prices,
rentals that are reasonably similar to
the owner-occupied units will be good
enough. It is this latter principle that
statisticians at the BLS invoke when
they measure the housing services of
owner-occupied units.
SOME DIFFICULTIES IN MEASURING RENT INFLATION
It would seem that measuring
rental inflation should be straightforward, but as so often happens in economic measurement, the details turn
out to involve some devilish problems.
To measure tenant rents in the U.S.,
the BLS samples rental properties in
urban areas (that is, cities and their
surrounding suburbs). Generally speaking, the BLS price inspector obtains
this information from the landlord

2
Housing provides returns to the homeowner in
two forms: housing services (or implicit rent) received during the period the homeowner occupies the house, and the value of the house when
the homeowner sells it. In turn, the sale value
of the house will be derived from the housing
services the house provides thereafter.

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or real estate manager. If rental units
are vacant, their prices are estimated
based on the inflation rate at similar
units.
Measured Rental Inflation Lags
Reality by Three Months. One unusual feature of rents compared with
other prices is that the typical rental
unit experiences a price change once a
year. Thus, if the price inspectors were
to check on a given unit every month,
11 times out of 12, the answer would
be the rent hasn’t changed. So BLS
price inspectors collect data on rents
only every six months from a given
unit. The current monthly rate of rental inflation is then calculated as the
average rate of inflation of the units
surveyed in that month. One measurement problem shows up immediately: The actual rental price increase
at these units could have occurred any
time over the past six months, but the
increase is included in the index as if it
had occurred in the past month.3 On
average, the rental price increase actually measured occurred three months
ago; this tends to create a three-month
lag in the average time it takes for an
increase in rents to show up in the
price index. This lag results in rental
inflation being understated when it is
accelerating and overstated when it
slows. If rental inflation is changing
rapidly, three months can be a long
time, and the measurement error can
be significant.
Comparability of Tenant and
Owner-Occupied Housing Services.
The U.S. consumer price index uses
two main measures of housing services:
rent of primary residence, for renters,
and owners’ equivalent rent of primary
residence, for owner-occupiers. Both

3

The monthly inflation rate is taken to be the
monthly rate that would compound to the sixmonth change. Technically, the monthly log
change is calculated by taking one-sixth of the
six-month log change.

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are measured using tenant rents. However, owners’ equivalent rent inflation
differs from rent of primary residence
inflation mainly for two reasons. First,
owners tend to live in different places
and in different types of units than
renters. To remedy this imperfect comparability, the BLS gives greater weight
to rental units that resemble owneroccupied units, such as single-family
detached units, and that are in areas
where housing is predominantly owner
occupied, such as the suburbs.
Second, for many rental units,
landlords directly pay some energy
and other utility costs; therefore, these
costs are indirectly included in rents
paid by tenants. For example, for units

BLS data to measure inflation and to
adjust economic growth for inflation,
has consistently measured owner-occupied housing services with rents
in the national income accounts as
part of its measures of gross domestic
product and personal consumption
expenditures. Alternative measures of
housing services are discussed in Alternatives to Rent as Measures of Housing
Services and in the working paper by
BLS economists Robert Poole, Frank
Ptacek, and Randal Verbrugge.
Aging Bias. Aging bias is an additional issue that must be addressed
in the data. Does a rental unit remain
the same from year to year as it is
rented, or does it deteriorate as it ages?

The U.S. consumer price index uses two main
measures of housing services: rent of primary
residence, for renters, and owners’ equivalent
rent of primary residence, for owner-occupiers.
that include fuel costs in the rent,
rents tend to rise more rapidly when
energy costs are rising. Owners, on the
other hand, all pay their utility costs
directly. To the extent utility costs are
included in rents, the BLS has to subtract utility costs from rents to obtain
the “pure rents” it needs to calculate
inflation for owner-occupied housing.
The BLS has not always used
rents to measure the housing services
of owner-occupied housing in the
consumer price index. From the early
1950s to the early 1980s, it used the
so-called acquisition method, measuring house-price inflation, mortgage
interest rates, and other out-of-pocket
costs of homeownership, such as
home insurance. But this method
mixed investment returns with housing services’ consumption costs, and
economists widely viewed it as unsatisfactory. The BEA, which generally uses

If landlords’ maintenance and repair
activities are not sufficient to keep
the average unit as good as new, how
important is aging quantitatively? One
way to answer this question would be
to find two units that are exactly the
same but built at different dates. If the
older one fetches a lower rent than
the newer one, the difference would
be attributable to deterioration due to
age. But such situations rarely occur
and are unlikely to be representative of
all units.
Another way to accomplish the
same thing is to obtain rental data on
a variety of different rental units, along
with all of the units’ relevant characteristics, and tease out from these data
the average impact of aging on rents.
The empirical method economists use
to do this is called hedonic regression.
The idea behind this approach is that
any product is purchased because of

Business Review Q2 2007 27

Alternatives to Rent as a Measure of
Housing Services

T

he Purchase Method. One way to measure owner-occupied
housing services inflation is to look at the inflation rate of the
houses themselves. We measure the rate of inflation for new
cars, refrigerators, and furniture by using the prices of these
durable goods, rather than trying to estimate the services we
receive from them. So why not do the same for housing? Because, as we have argued, housing prices reflect investment, not just consumption. Moreover, estimating the inflation rate for new homes is actually quite
difficult because new homes differ in location as well as in details of construction. In addition, the purchase price of houses doesn’t include many of the costs
of homeownership, such as taxes and insurance.
The Acquisition Method. As used in the U.S. consumer price index from
the mid-1950s to the early 1980s, the acquisition method, also called the asset
price approach, included the purchase price of houses, mortgage interest rates,
taxes, insurance, and maintenance and repair costs. Among many criticisms
of this approach is the fact that the effective cost of a given level of mortgage
interest depends on the expected rate of inflation. A mortgage interest rate of
1 percent can be effectively more expensive to the consumer than a mortgage
interest rate of 5 percent if the rate of inflation is expected to be negative in the
first instance and very high in the second.
The User Cost Method. In this approach, cost depends on the interest
and operating costs of the house, less the expected house-price appreciation. At
any point in time, we take an individual unit, evaluate its price, and multiply
that price by the interest rate less the expected appreciation rate, and add on
the operating costs (taxes and maintenance). This is what the owner actually
pays to use the unit; it is conceptually the same as the rent, provided there is
no risk and no transaction costs. The interest rate calculation should take into
consideration the tax treatment of mortgage interest, and the appreciation calculation, the tax treatment of capital gains.
Of course, the expected appreciation rate is never observed directly. Taking into account risks in the valuation of the house together with transactions
costs is very difficult. As a consequence, a practical measure of user costs has
yet to be set forth.
These difficulties explain why the Bureau of Economic Analysis and the
Bureau of Labor Statistics regard tenant rents as the best practical measure of
owner-occupied housing services. However, tenant-occupied units and owneroccupied units remain disparate, and as Federal Reserve Board economist
Joshua Gallin has shown, the dynamics of owner-occupied house prices
and rents are quite different. Thus, further research in this area remains an
important item on the price-measurement agenda.

its desirable (or “hedonic”) characteristics. For example, a car might have
such characteristics as horsepower,

28 Q2 2007 Business Review

gasoline mileage, sunroof, trunk size,
interior room, power seats, and so
forth. Similarly, a house might have

characteristics such as square footage,
number of bedrooms and bathrooms,
total number of rooms, type of neighborhood, size of garage, central air
conditioning, and so forth, as well as
age. A hedonic regression would attempt to capture how all of an average
unit’s characteristics, including age,
influenced the unit’s rent. If one found
that rents fell with age, controlling
for changes in other characteristics, it
might indicate that, on average, rental
units are not maintained in the same
condition as when they were first built.
However, using a hedonic regression to estimate the effect of physical
deterioration on rents presents two
potential problems. The first is the
so-called vintage effect, which arises
when new units have unmeasured
quality characteristics that old units
do not have. For example, the more
extensive use of insulation in houses
built after the 1970s may mean that
newer houses have higher unmeasured
quality — and, thus, fetch higher rents
— than older units, but this is not
due to the deterioration of older units.
On the other hand, if higher quality
units remain in the stock of occupied
housing while lower quality units are
demolished, this may raise the unmeasured quality of older units relative
to new units and produce relatively
higher rents. But this is not because
individual units are getting better
over time, just that worse units are
disappearing. These so-called vintage
effects are hard to separate from the
aging effect per se — physical deterioration — on rent.
The second problem in estimating
aging’s effect on rent is that units of
different types (e.g., apartments versus
detached houses) may deteriorate at
different rates, possibly because the
incentives to maintain a unit may differ or maintenance costs may be lower.
In his 1988 articles BLS economist
William Randolph took steps to solve

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both of these problems in estimating
the effect of systematic physical deterioration on rents. Randolph argued that
including a sufficient number of housing and neighborhood characteristics
in a hedonic equation would render
the remaining vintage effect minimal.4
He included housing characteristics
such as the presence of a dishwasher
or washer/dryer and neighborhood
characteristics such as the percent of
the population with a college education. He also estimated different aging
effects depending on the number of
rooms in the unit, whether the unit
was detached, and whether it was rent
controlled. His resulting estimate of
the average effect of aging on rent was
-0.36 percentage point a year, meaning that the quality of the average unit
deteriorated at that rate. This implied,
for example, that if the rental price of
an average unit rose 3 percent in a given year, the true rate of rental inflation
was 3.36 percent. Since 1988, the BLS
has used Randolph’s estimating technique, updated over time, to calculate
aging’s effect, then uses that calculation to adjust the rent component of
the CPI by adding on the aging bias.
Generally speaking, BLS estimates of
the average aging effect have changed
very little. In the revised measure of
rental inflation developed in our study,
aging bias before 1988 is estimated
by adopting Randolph’s correction of
-0.36 percentage point, and raising
annual rental inflation rates by 0.36
percentage point.
NONRESPONSE PROBLEMS
AND THE BLS CORRECTIONS
Now we turn to the biggest
source of error in the historical CPI
4
Gordon and vanGoethem argue that Randolph’s methodology insufficiently accounts for
quality improvements in housing. For example,
Randolph’s methodology will not capture the
change in quality if homes are constructed with
more thermal insulation.

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measures of rent: nonresponse bias.
Nonresponse bias is a subcategory of
a more general kind of statistical bias:
sample-selection bias. Generally speaking, whenever statisticians collect data,
they are aware their work is potentially
affected by sample-selection bias; that
is, the data gathered do not reflect the
population sampled. This is a problem
even for censuses that attempt to reach
the entire population, such as U.S.
population censuses, which have been
shown to have difficulty counting lowincome neighborhoods.

that landlords and real estate managers might not report rents accurately
if they had illegally increased rents. In
fact, later analysis suggested that in
many neighborhoods, there were more
rent increases than had been authorized. So the BLS instructed rental
price inspectors to ask tenants for the
data and that is what they did from
1942 until the end of 1977.
This meant going to tenants and
getting them to agree to an interview
and inspection of their dwellings
and to answer follow-up mail ques-

When a rental unit changes tenants, there is a
tendency for the price increase to be greater
than if the tenant had stayed.
For the BLS inflation measures,
an important difficulty is ensuring that
the price movement of the items surveyed represents the price movement
of the items households are actually
consuming. For example, the BLS has
been criticized for being too slow in
introducing new items into its lists of
products being priced, such as computers, whose prices decline rapidly when
they are first introduced. In that case,
the sample-selection bias has tended to
cause inflation to be overstated, since
prices of older computers fell more
slowly than the prices of new ones.
The rental sample-selection bias goes
in the opposite direction, biasing inflation measures downward: Units where
tenants have moved are undercounted,
and rents rise faster at these units.
Let’s look at this problem in more detail.
Before 1942, the BLS gathered
rental data primarily from landlords
and real estate managers, as it does
now. However, during World War II,
rent controls were imposed across the
nation. As a result, there was concern

tionnaires every three months. (In
the 1950s the frequency of the mail
questionnaires was reduced to every
six months.) When tenants moved,
the BLS would have to find the unit’s
new tenants and get them to agree to
participate, and the BLS would also
have to reinspect the unit to see if the
landlord or manager had made any
changes to it. If the new tenant could
not be contacted soon enough, or if
the unit remained vacant in the price
collection month, the BLS would not
record information on rent at that
unit, and any price increase at the unit
would be lost. But tenants, when they
move, usually move at the time of the
unit’s annual rent increase. The data
lost when tenants move have a much
higher probability of including a price
increase than the data for a typical
unit; therefore, this problem of nonresponse biases the rate of inflation
downward. This nonresponse bias problem was revealed in a study by two BLS
economists, Joseph Rivers and John
Sommers, and my study with Crone
and Voith.

Business Review Q2 2007 29

Compounding this issue is another interesting problem revealed by the
BLS data: When a rental unit changes
tenants, there is a tendency for the
price increase to be greater than if
the tenant had stayed. Rents for units
whose tenants change rise about onethird faster than rents for tenants who
continue in residence. So not only
were some rent increases lost, but the
ones lost were generally larger. One
possible reason for this phenomenon is
that when landlords raise the rent too
high, tenants leave. But that doesn’t
explain why the rental inflation rate
tends to be low if the tenant continues
to stay in the apartment, at least for a
few years, or so the paper by Hebrew
University professor David Genesove
argues. Instead, he suggests, finding a
good tenant is not always easy for landlords, and so landlords tend to keep
the rent low for continuing tenants.
Many of these problems were
solved in 1978, when the BLS made
a major revision to the methods by
which it collects the data for the consumer price index. The 1978 revision,
perhaps the BLS’s most expensive
makeover ever of its consumer price
index, was intended to place the
consumer price index on as sound a
statistical footing as possible. As part
of this revision, the BLS elected to
shrink the size of the rental sample but
put more resources into obtaining high
response rates from the units. One step
was to permit the price inspectors to
go back to surveying landlords and real
estate managers as well as tenants; in
practice, this meant surveying mainly
landlords and managers.
The BLS also conducted a number of studies examining the impact
of the revised methods. The paper by
Rivers and Sommers was one result;
they found that new tenants were indeed now being included in the survey
and that the rents for these new tenants tended to reflect higher rates of

30 Q2 2007 Business Review

inflation than other units. They also
pointed out that the new method still
omitted price increases in units that
remained vacant at the time of their
price inspection, and they were able to
show that this produced a continuing
downward bias in the price index.
Their work also pointed up a
second problem: recall bias. One part
of the 1978 revision to rent increases
was a very clever idea: asking whether
the rent had increased in the past
month. As pointed out earlier, using
the six-month change as if it had occurred in the past month creates a lag
in the data. In the 1978 revision, the
BLS began using a weighted average
of the past month’s increase with the
six-month increase to create a more
current index. Indeed, the way the
BLS planned to do this would almost
completely eliminate the lag in the
index. Unfortunately, it turned out
that recall of rent increases in the
past month was very poor, perhaps
because respondents perceive the rent
to increase when the former tenant
moves out, rather than at the start of
the new tenant’s occupancy (the BLS’s
definition).5 Whatever the reason,
adding the one-month rent increases
created an additional downward bias.
So even after 1978, there continued to
be downward biases, which were only
fixed at the beginning of 1985.
NEW MEASURES OF RENTS
From 1942 to 1985, primarily
because of nonresponse bias, the rent
measure was understated. But we have
direct evidence of the size of the bias
only for 1978 forward. What to do?
Our study attempts to “backcast” the
size of the bias by setting up a model of
the BLS measurement process, including various measured characteristics of
the housing market, such as how often
tenants move, how long apartments
are vacant, and how much rents rise
when tenants move. Figure 2 summa-

rizes the contributions of nonresponse
bias, as measured by our model, aging
bias, and recall bias to our new estimate of rental inflation from 1942 to
1985.
Most of the aspects of this model
are testable using BLS data on rents.
Such a data set, from the period
1985 to 1988, was made available
by Genesove, who had used it in
his study of rent dynamics. My coauthors and I were able to show that
our model would have given a good
approximation of biases from 1985
to 1988, a period of relatively low
inflation, even though most of the
parameters were calculated based on
data from the high-inflation period
of the late 1970s and early 1980s.
We predict, for example, how much
the inflation rate should change if
tenants who move are omitted from
the sample and then we check whether
the rate changes by that proportion
in Genosove’s data. That parameters
taken from a high-inflation episode
can be used to match data from a
low-inflation episode provides some
assurance that the model can be used
across periods that include episodes of
both types.
We then used the model to estimate that the CPI tenant rent inflation
from 1942 to 1985 was too low by 1
percentage point annually because of
nonresponse bias and recall bias. During this time, it appears that the BLS
missed nearly one out of three rental
increases. Given that an aging bias of
nearly 0.4 percent was also present in
these data, we conclude that the CPI
for tenant rents was downwardly biased
by 1.4 percentage points annually for

5

Recall bias was somewhat worse when landlords and managers were the respondents; since
landlords and managers have good records upon
which to base their answers, this suggests a
conceptual confusion on the part of the respondents rather than a factual one.

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more than four decades.
This is a very large bias, cumulated over time. As noted earlier, we find
that rather than falling 20 percent, as
in the BLS estimates, rents rose 50 percent relative to other prices from 1942
to 1985. A similarly large downward
bias estimate has also been put forward
by Gordon and vanGoethem, using
entirely separate data.
A Second Measure of Rental
Inflation. Our approach was to take
BLS rental information, based on
information for individual housing
units over time, and correct its
biases. An alternative way to measure
inflation – the route taken by Gordon
and vanGothem – is to measure the
average cost of all rental units at two
different dates and ask how much the
quality of the average unit changed
between the two dates. For their
purposes, the U.S. censuses of housing
and population, conducted every
decade, and the American Housing
Surveys, conducted at first annually
and now every two years, provide
estimates of average rents going back
to 1930. These censuses and surveys
also provide data on various features
of the housing units, such as the
presence of indoor plumbing, central
air conditioning, and so forth.
Unfortunately, as we go back
in time, the censuses provide fewer
details. The earliest census Gordon
and vanGoethem use has very little
in the way of detail. Somewhat more
detail on rental characteristics is available from a study by Clair Brown that
uses budget studies performed by the
Bureau of Labor Statistics going as
far back as 1918. To estimate quality with skimpier data, Gordon and
vanGoethem analyzed more recent
decades to put reasonable bounds on
their estimates for earlier periods. The
main quality adjustments are based
on trends in plumbing, central heating, and electrification. They can test

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their estimates by examining how far
off they would be if they used them on
more recent data; by and large, their
estimates seem to be reasonable.
This admittedly crude methodology does appear to make the best
possible use of data other than the
consumer price index data we use.
Gordon and vanGoethem indicate that
from 1940 to 1985, annual inflation
has been understated by 1.2 percentage
points; this is not far from our study’s
estimate of 1.4 percentage points.
Gordon and vanGoethem confirmed their estimate by looking at
information on rents from Evanston,
Illinois, from 1925 to 1999. They used
classified advertisements on rents from
a local newspaper to construct a rental
price index. They were able to collect
not only rents, along with some information on quality (such as number of
rooms), but also matching apartment

rents at specific addresses, which is
close to the BLS procedure. They
constructed two rental indexes using
these two types of data and found that
they broadly agree. From 1940 to 1985,
rents in Evanston, Illinois, rose roughly
1.6 percent faster than CPI rent inflation. However, one might worry that
Evanston, a relatively wealthy suburb,
has done better than the average location in the United States.
Taken together, these studies
paint a very broad picture of inflation
bias in rents from 1940 to 1985. Two
very different approaches find bias in
the same direction and of the same
general magnitude for this period.
CONCLUSION
Housing services are an important
part of what we consume. As we have
seen, measuring inflation in housing
services has, in the past, raised chal-

FIGURE 2
Components of Estimated Rental Inflation,
1942 to 1985
Annual percent changes (in logs)
6.0
Recall bias, 0.1%

5.0

4.0

Aging bias, 0.4%
Estimated nonresponse bias, 0.9%

3.0

2.0

Official BLS rental inflation, 3.6%

1.0

0

Total inflation rate, 5.0%

Source: U.S. Bureau of Labor Statistics and Crone et al. (2006)

Business Review Q2 2007 31

lenging problems that have not always
been immediately recognized. One
consequence is that our historical record of rents appears to be inaccurate.
At the same time, we must recognize
that this is an area in which the Bureau of Labor Statistics took vigorous
steps to improve its measures. As a
consequence, many of the problems
that affected this measure have been
solved.
We have argued that measuring
rents accurately is important because
housing services are a large part of
consumption. Another reason accurately measuring rents matters is that
since housing services are the benefit
we receive from homeownership, rents
are an important measure of house
values. Inaccurate data on rents may
generate conundrums when economists and others seek to understand
house prices.
In a recent article in which he
argues that house prices are now too
high, Yale economist Robert Shiller

32 Q2 2007 Business Review

points out that since 1913, housing
prices have risen relative to other prices, while rents have fallen. This is a
puzzle because, over long periods, one
might expect prices and rents to move
together, since rents provide the economic basis for house prices. In fact,
once we adjust for nonresponse and
aging bias, both rents and house prices
have risen over the past 90 years;
this provides one possible solution to
Shiller’s puzzle.
In addition, having more accurate
historical inflation statistics helps us
better understand our economy. Many
economic propositions depend on statistical models that can be accurately
measured only with long data series.
By improving this important economic
series, we improve the ability of the
economics profession to sort out good
theories from bad ones.
Finally, economists have puzzled
over the productivity slowdown that
the U.S. experienced from 1975 to
1995, when output per hour in the

nonfarm business sector rose just 1.5
percent annually, compared with 2.4
percent annually from 1955 to 1975.
If inflation has been understated, as I
have argued it has for rents, then real
output growth will tend to be overstated because for a given level of nominal
rent payments, lower prices imply
higher real consumption. While our
new data do not make the post-1975
productivity slowdown vanish, they do
reduce its size. In particular, our new
data argue that output per hour was
actually a bit lower from 1955 to 1975,
growing 2.2 percent annually, the postwar average. However, the growth rate
from 1975 to 1995 is also somewhat
lower, at just 1.4 percent a year, since
the data bias continued until 1985.
A difficult question that we have
not fully faced up to in this article is:
How accurately do rents for tenant
units – even when adjusted as the BLS
does – capture the housing services of
owner-occupied units? This is an important area for future research. BR

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REFERENCES

Brown, Clair. American Standards of Living,
1918-1988. Cambridge: Basil Blackwell,
1994.

Genesove, David. “The Nominal Rigidity
of Apartment Rents,” Review of Economics
and Statistics (November 2003).

Chatterjee, Satyajit. “Homeownership,
Taxes, and the Allocation of Residential
Real Estate Risks,” Federal Reserve
Bank of Philadelphia Business Review
(September/October 1996).

Gordon, Robert, and Todd vanGoethem.
“Downward Bias in the Most Important
CPI Component: The Case of Rental
Shelter, 1914-2003,” in Ernst R. Berndt and
Charles M. Hulten (eds.), Hard to Measure
Goods and Services: Essays in Honor of Zvi
Griliches. Chicago: University of Chicago,
forthcoming.

Crone, Theodore M., Leonard I.
Nakamura, and Richard Voith. “The
CPI for Rents: A Case of Understated
Inflation,” Federal Reserve Bank of
Philadelphia Working Paper 06-7 (January
2006).
Crone, Theodore M., Leonard I.
Nakamura, and Richard Voith. “Hedonic
Estimates of the Cost of Housing Services:
Rental and Owner-Occupied Units,”
in W. Erwin Diewert, Bert M. Balk,
Dennis Fixler, Kevin J. Fox, and Alice O.
Nakamura, eds., Prices and Productivity
Measurement. Trafford Press, forthcoming.
Davis, Morris E., and Jonathan Heathcote.
“The Price and Quantity of Residential
Land in the United States,” Working Paper
(October 2005).
Gallin, Josh. “The Long-Run Relationship
Between House Prices and Rents,” Federal
Reserve Board FEDS Working Paper 200450 (September 2004).

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Haines, Michael R., and Allen C.
Goodman. “A Home of One’s Own: Aging
and Homeownership in Late 19th Century
and Early 20th Century America,” in David
I. Kertzer and Peter Loslett, eds., Aging
in the Past: Demography, Society, and Old
Age. Berkeley, CA: University of California
Press, 1993.
Nakamura, Leonard I., “Measuring
Inflation in a High-Tech Age,” Federal
Reserve Bank of Philadelphia Business
Review (November-December 1995).
Nakamura, Leonard I. “The
Retail Revolution and Food-Price
Mismeasurement,” Federal Reserve Bank
of Philadelphia Business Review (May-June
1998).

Poole, Robert, Frank Ptacek, and Randal
Verbrugge. “Treatment of Owner-Occupied
Housing in the CPI,” BLS Working Paper
at: www.bls.gov/bls/fesacp1120905.pdf.
Randolph, William C. “Estimation of
Housing Depreciation: Short-Term Quality
Change and Long-Term Vintage Effects,”
Journal of Urban Economics, 23 (1988a), pp.
162-78.
Randolph, William C. “Housing
Depreciation and Aging Bias in the
Consumer Price Index,” Journal of Business
and Economic Statistics, 6 (1988b), pp. 35971.
Rivers, Joseph D., and John P. Sommers,
“Vacancy Imputation Methodology for
Rents in the CPI,” Proceedings of the ASA
Economics and Business Section (1983), pp.
201-05.
Shiller, Robert. “Long-term Perspectives
on the Current Boom in Home Prices,”
Economists’ Voice (March 2006).
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“Owner-Occupied Housing as a Hedge
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Business Review Q2 2007 33

RESEARCH RAP

Abstracts of
research papers
produced by the
economists at
the Philadelphia
Fed

You can find more Research Rap abstracts on our website at: www.philadelphiafed.org/econ/resrap/index.
html. Or view our Working Papers at: www.philadelphiafed.org/econ/wps/index.html.

HOUSEHOLD TRADING AND
SEGMENTED MARKETS
The authors examine a monetary
economy where households incur fixed
transactions costs when exchanging bonds
and money and, as a result, carry money
balances in excess of current spending to
limit the frequency of such trades. Since
only a fraction of households choose to
actively trade bonds and money at any
given time, the market is endogenously
segmented. Moreover, because households
in this model economy have the ability to
alter the timing of their trading activities,
the extent of market segmentation varies
over time in response to real and nominal
shocks. The authors find that this added
flexibility can substantially reinforce both
sluggishness in aggregate price adjustment
and the persistence of liquidity effects in
real and nominal interest rates relative
to that seen in models with exogenously
segmented markets.
Working Paper 07-1, “Inflation and
Interest Rates with Endogenous Market
Segmentation,” Aubhik Khan, Federal Reserve
Bank of Philadelphia, and Julia Thomas,
Federal Reserve Bank of Philadelphia

34 Q2 2007 Business Review

SEPARATION RATES AND
UNEMPLOYMENT VARIABILITY:
A REASSESSMENT
In a recent influential paper, Shimer uses
CPS duration and gross flow data to draw two
conclusions: (1) separation rates are nearly
acyclic; and (2) separation rates contribute
little to the variability of unemployment. In
this paper, the authors assert that Shimer's
analysis is problematic, for two reasons: (1)
cyclicality is not evaluated systematically; and
(2) the measured contributions to unemployment variability do not actually decompose
total unemployment variability. The authors
address these problems by applying a standard statistical measure of business cycle
co-movement and constructing a precise
decomposition of unemployment variability.
Their results disconfirm Shimer's conclusions.
More specifically, separation rates are highly
countercyclical under various business cycle
measures and filtering methods. The authors
also find that fluctuations in separation rates
make a substantial contribution to overall
unemployment variability.
Working Paper 07-2, “Reassessing the Shimer Facts,” Shigeru Fujita, Federal Reserve Bank
of Philadelphia, and Garey Ramey, University of
California, San Diego

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OVERCONFIDENCE IN FINANCIAL MARKETS
AND CONSUMPTION
Overconfidence is a widely documented
phenomenon. Empirical evidence reveals two types
of overconfidence in financial markets: investors
both overestimate the average rate of return to their
assets and underestimate uncertainty associated
with the return. This paper explores implications of
overconfidence in financial markets for consumption
over the life cycle. The authors obtain a closed-form
solution to the time-inconsistent problem facing an
overconfident investor/consumer who has a CRRA
utility function. They use this solution to show that
overestimation of the mean return gives rise to a hump
in consumption during the work life if and only if the
elasticity of intertemporal substitution in consumption
is less than unit. They find that underestimation of
uncertainty has little effect on the long-run average
behavior of consumption over the work life. Their
calibrated model produces a hump-shaped worklife consumption profile with both the age and the
amplitude of peak consumption consistent with
empirical observations.
Working Paper 07-3, “Overconfidence in Financial
Markets and Consumption Over the Life Cycle,” Frank
Caliendo, Colorado State University, and Kevin X. D.
Huang, Vanderbilt University (formerly Federal Reserve
Bank of Philadelphia)
CAPITAL AND MACROECONOMIC
INSTABILITY
The authors establish the necessary and sufficient
conditions for local real determinacy in a discrete-time
production economy with monopolistic competition
and a quadratic price adjustment cost under forwardlooking policy rules, for the case where capital is in
exogenously fixed supply and the case with endogenous
capital accumulation. Using these conditions, they
show that (i) indeterminacy is more likely to occur
with a greater share of payment to capital in value-

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added production cost; (ii) indeterminacy can be more
or less likely to occur with constant capital than with
variable capital; (iii) indeterminacy is more likely to
occur when prices are modeled as jump variables than
as predetermined variables; (iv) indeterminacy is less
likely to occur with a greater degree of steady-state
monopolistic distortions; and (v) indeterminacy is less
likely to occur with a greater degree of price stickiness
or with a higher steady-state inflation rate. In contrast
to some existing research, the authors' analysis indicates
that capital tends to lead to macroeconomic instability
by affecting firms' pricing behavior in product markets
rather than households' arbitrage activity in asset
markets even under forward-looking policy rules.
Working Paper 07-4, “Capital and Macroeconomic
Instability in a Discrete-Time Model with Forward-Looking
Interest Rate Rules,” Kevin X. D. Huang, Vanderbilt
University (formerly Federal Reserve Bank of Philadelphia),
and Qinglai Meng, Chinese University of Hong Kong
CYCLICALITY OF JOB LOSS, JOB FINDING,
AND HIRING RATES
Drawing on CPS data, the authors show that total
monthly job loss and hiring among U.S. workers, as well
as job loss hazard rates, are strongly countercyclical,
while job finding hazard rates are strongly procyclical.
They also find that total job loss and job loss hazard
rates lead the business cycle, while total hiring and job
finding rates trail the cycle. In the current paper the
authors use information from the Survey on Income
and Program Participation (SIPP) to reevaluate
these findings. SIPP data are used to construct new
longitudinally consistent gross flow series for U.S.
workers, covering 1983-2003. The results strongly
validate the authors' findings, with two important
exceptions: (1) total hiring leads the cycle in the SIPP
data, and (2) the job loss rate is substantially more
volatile than the job finding rate at business cycle
frequencies.
Working Paper 07-5, “The Cyclicality of Worker

Business Review Q2 2007 35

Flows: New Evidence from the SIPP,” Shigeru Fujita,
Federal Reserve Bank of Philadelphia; Christopher J.
Nekarda, University of California, San Diego; and Garey
Ramey, University of California, San Diego

Working Paper 07-7, “Matching Externalities and Inventive
Productivity,” Robert M. Hunt, Federal Reserve Bank of
Philadelphia

THREE POINTS ABOUT PATENTS
The author uses intuition derived from several of
his research papers to make three points. First, in the
absence of a common law balancing test, application
of uniform patentability criteria favors some industries
over others. Policymakers must decide the optimal
tradeoff across industries. Second, if patent rights are
not closely related to the underlying inventions, more
patenting may reduce R&D in industries that are both
R&D and patent intensive. Third, for reasons largely
unrelated to intellectual property, the U.S. private
innovation system has become far more decentralized
than it was a generation ago. It is reasonable to inquire
whether a patent system that worked well in an era of
more centralized innovation functions as well for the
more decentralized environment of today.
Working Paper 07-6, “Economics and the Design of
Patent Systems,” Robert M. Hunt, Federal Reserve Bank of
Philadelphia

MEASURING THE PERSONAL SAVING RATE
Is it possible to forecast using poorly measured
data? According to the permanent income hypothesis,
a low personal saving rate should predict rising future
income (Campbell, 1987). However, the U.S. personal
saving rate is initially poorly measured and has been
repeatedly revised upward in benchmark revisions. The
authors use both conventional and real-time estimates
of the personal saving rate in vector autoregressions to
forecast real disposable income; using the level of the
personal saving rate in real time would have almost
invariably made forecasts worse, but first differences
of the personal saving rate are predictive. They also
test the lay hypothesis that a low personal saving rate
has implications for consumption growth and find no
evidence of forecasting ability.
Working Paper 07-8, “Mismeasured Personal Saving
and the Permanent Income Hypothesis,” Leonard I.
Nakamura, Federal Reserve Bank of Philadelphia, and
Tom Stark, Federal Reserve Bank of Philadelphia

IMPLICATIONS OF URBAN DENSITY FOR
LABOR MARKET SEARCH AND MATCHING
This paper generalizes and extends the labor
market search and matching model of Berliant, Reed,
and Wang (2006). In this model, the density of cities
is determined endogenously, but the matching process
becomes more efficient as density increases. As a result,
workers become more selective in their matches, and
this raises average productivity (the intensive margin).
Despite being more selective, the search process
is more rapid so that workers spend more time in
productive matches (the extensive margin). The effect
of an exogenous increase in land area on productivity
depends on the sensitivity of the matching function
and congestion costs to changes in density.

BASEL II AND ITS POTENTIAL
COMPETITIVE EFFECTS
The authors analyze the potential competitive
effects of the proposed Basel II capital regulations
on U.S. bank credit card lending. They find that
bank issuers operating under Basel II will face higher
regulatory capital minimums than Basel I banks, with
differences due to the way the two regulations treat
reserves and gain-on-sale of securitized assets. During
periods of normal economic conditions, this is not
likely to have a competitive effect; however, during
periods of substantial stress in credit card portfolios,
Basel II banks could face a significant competitive
disadvantage relative to Basel I banks and nonbank
issuers.

36 Q2 2007 Business Review

www.philadelphiafed.org

Working Paper 07-9, “Competitive Effects of Basel
II on U.S. Bank Credit Card Lending,” William W.
Lang, Federal Reserve Bank of Philadelphia; Loretta J.
Mester, Federal Reserve Bank of Philadelphia and The
Wharton School, University of Pennsylvania; and Todd A.
Vermilyea, Federal Reserve Bank of Philadelphia
FORGIVE AND FORGET?
In many countries, lenders are not permitted to use
information about past defaults after a specified period
of time has elapsed. The authors model this provision
and determine conditions under which it is optimal.
They develop a model in which entrepreneurs must
repeatedly seek external funds to finance a sequence of
risky projects under conditions of both adverse selection
and moral hazard. They show that forgetting a default
makes incentives worse, ex-ante, because it reduces the
punishment for failure. However, following a default it
is generally good to forget because pooling riskier agents
with safer ones makes exerting high effort to preserve
their reputation more attractive.
The authors' key result is that if agents are
sufficiently patient and low effort is not too inefficient,
the optimal law would prescribe some amount of
forgetting — that is, it would not permit lenders to
fully use past information. The authors also show that
such a law must be enforced by the government — no
lender would willingly agree to forget. Finally, they also
use their model to examine the policy debate that arose
during the adoption of these rules.
Working Paper 07-10, “Bankruptcy: Is It Enough to
Forgive or Must We Also Forget?,” Ronel Elul, Federal
Reserve Bank of Philadelphia, and Piero Gottardi,
Università Ca’ Foscari di Venezia
USING STATE-LEVEL DATA TO GAUGE
EMPLOYMENT GROWTH VOLATILITY
This study documents a general decline in the
volatility of employment growth during the period 1960
to 2002 and examines its possible sources. A unique

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aspect of the analysis is the use of state-level panel data.
Estimates from a pooled cross-section/time-series model
indicate that aggregate and state-level factors each
explain an important share of the total variation in
state-level volatility. Specifically, state-level factors have
contributed as much as 29 percent, while aggregate
factors are found to account for up to 45 percent of the
variation. With regard to state-level factors, the share
of state total employment in manufacturing and state
banking deregulation each contributed significantly to
fluctuations in volatility. Among the aggregate factors
separately identified, monetary policy, changes in the
inventory-to-sales ratio, changes in the ratio of total
trade to GDP, and oil prices significantly affected statelevel volatility, although to differing degrees.
Working Paper 07-11, “The Long and Large Decline
in State Employment Growth Volatility,” Gerald Carlino,
Federal Reserve Bank of Philadelphia; Robert DeFina,
Villanova University, and Visiting Scholar, Federal Reserve
Bank of Philadelphia; and Keith Sill, Federal Reserve Bank
of Philadelphia
U.S. LABOR MARKET: JOB LOSS, JOB
FINDING, AND VACANCIES
This paper establishes robust cyclical features of the
U.S. labor market by estimating VAR models of the job
loss rate, job finding rate, and vacancies. To identify the
"aggregate business cycle shock," the author adopts the
agnostic Bayesian identification approach developed
by Uhlig (2005) and others. His approach traces not
only responses of transition rates and vacancies but
also those of gross job losses and hires and thereby the
stock of unemployment in one unified framework. The
author finds that when a negative shock occurs, (i)
both the job loss rate and gross job losses rise quickly
and remain persistently high, (ii) the job finding rate
and vacancies drop in a hump-shaped manner, and (iii)
gross hires respond little initially but eventually rise. He
argues that these results point to the importance of job
loss in understanding U.S. labor market dynamics. The

Business Review Q2 2007 37

paper also considers the “disaggregate model,” which
uses data disaggregated by six demographic groups
and incorporates transitions into and out of the labor
force. The author finds that job loss continues to play
a dominant role among prime-age male workers, while,
for other groups, changes in the job finding rate are
more important.
Working Paper 07-12, “Dynamics of Worker Flows
and Vacancies: Evidence from the Agnostic Identification
Approach,” Shigeru Fujita, Federal Reserve Bank of
Philadelphia
ESTIMATING POVERTY TRENDS AMONG
WORKING FAMILIES
This study provides empirical evidence on recent
trends in poverty among working families based on
the headcount rate and a broader alternative that
incorporates the headcount rate, the depth of poverty,
and income inequality among the poor. Estimates

38 Q2 2007 Business Review

reveal that the indexes produce significantly different
trends. The headcount rate indicates a reduction in
overall working poverty for the sample period, while
the alternative index showed no statistically significant
change. The same result was found for various
population subgroups. Decompositions of the index
changes show that tax changes contributed to lower
values for both the headcount rate and the alternative
index, largely due to recent expansions of the earned
income tax credit. Changes in transfer payments added
to measured poverty, mirroring the retrenchment of
welfare and other transfer programs. Shifts in marketbased income decreased both indexes.
Working Paper 07-13, “A Comparison of Poverty
Trends and Policy Impacts for Working Families Using
Different Poverty Indexes,” Robert H. DeFina, Villanova
University, and Visiting Scholar, Federal Reserve Bank of
Philadelphia

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