Weaknesses of Unemployment
Statistics
Suppose we want to classify everyone in the population as
either male or female. Although the vast majority of people
are very easy to classify, there are problem cases. What
should be done with people who have sex-change operations?
They have the genetic make-up on one sex but the physical
attributes of the other. Or how should we classify people
who have an extra chromosome giving them two X-s and one Y?
If there are difficulties in deciding something as simple as
gender, it should not surprise you that there are problems
with the classifications of the unemployment statistics.
The unemployment data have a number of problems that lead
to an understatement of unemployment. For example, the data
count as employed all people who are working part time but
who would like to work full time. Since these people
represent unused labor effort that is available, the
unemployment rate understates the extent of unemployed
resources in the economy. Another problem that causes the
unemployment rate to understate the extent of unemployed
resources is the "discouraged-worker" effect. If someone
wants to work, but becomes so convinced that there are no
jobs available that he makes no effort to find work, he will
be counted as "not in the labor force." Since there will be
more discouraged workers the more severe the recession, this
factor will tend to dampen the fluctuations in the
unemployment rate.
Both part-time workers wanting full-time work and
discouraged workers tend to make the unemployment rate lower
than it would otherwise be. Working the other way, to
increase the unemployment rate above what it would otherwise
be, are government payments made to people only if they fit
into the "unemployed" category. Unemployment compensation
stops if a person announces that he no longer wants to find
a job. Thus, even if a person does not want to find another
job, he still may make the trip to the unemployment office
because in effect the government pays him several hundred
dollars to make that trip. The principle involved here is
the one of moral
hazard. Economists have argued that the more
generous unemployment compensation payments of the 1970s
added about one and one half percent to the normal rate of
unemployment compared to the 1950s and 1960s.
Another problem of interpreting unemployment numbers and
of comparing unemployment for different years is that
changes in the age structure of the population can affect
the unemployment rate. There are four sources of
unemployment: people enter the labor force, they reenter
after temporarily dropping out, they quit jobs, and they are
fired or laid off from jobs. Young people seeking their
first job will of course undergo a period of unemployment,
but young people are also more likely than older workers to
switch jobs--which may involve a period of unemployment--and
to shift in and out of the labor force as they choose
between work and education. As a result, young people have
higher rates of unemployment than do those over the age of
25. If the percentage of young people in the labor force
rises, one should expect the overall unemployment rate to
rise as well. A reason that unemployment rates were higher
in the 1970s than in the 1960s is that the percentage of
young workers rose in the 1970s as a result of the
post-World-War-II baby boom.
Finally, the decision about what constitutes unemployment
may change. In 1983 the Labor Department experimented with a
second unemployment rate that counted as employed members of
armed forces stationed in the U.S. The traditional rate
excludes them from the labor force. The reason for
considering this alternative series was that "with the
change to a volunteer system, military employment is not
substantially different from civilian
employment."1 If those in the armed forces were
counted as employed, unemployment rates would fall by
several tenths of a percent.
The question of who is unemployed had much larger
implications for the unemployment rates of the 1930s. The
official Bureau of Labor Statistics (BLS) figures counted as
unemployed all those in various government emergency
work programs, such as the Civilian Conservation Corps, the
Civil Works Administration, and the Works Progress
Administration. In 1938 these programs "employed" 3.5
million workers. If these workers had been counted as
employed, as they would be under the present way the BLS
measures employment status, the unemployment rates from 1933
until 1942 would have been substantially lower.
There are difficulties with all economic statistics, but
the problems do not arise because the people who designed
them were stupid or lazy. The problems arise because we are
trying to use a single number to summarize a phenomenon more
complex than any single number can report.
Next we move to inflation,
the second much-reported economic measurement.
  
1 Monthly Labor Review,
Feb 1983, p. 2
Copyright
Robert Schenk
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