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September 27, 2016

Back to the '80s, Courtesy of the Wage Growth Tracker

Things have been a wee bit quiet in macroblog land the last few weeks, chiefly because our time has been devoted to two exciting
new projects. The first is a refresh of our labor force dynamics website, which will feature a nifty tool for looking at the main reasons
behind changes in labor force participation for different age groups. More on that later.
The other project has been adding more history to our Wage Growth Tracker. The tracker's current time series starts in 1997. The
chart below shows an extended version of the tracker that starts in 1983.

Recall that the Wage Growth Tracker depicts the median of the distribution of 12-month changes of matched nominal hourly
earnings. In the extended time series, you'll notice two gaps, which resulted from the U.S. Census Bureau scrambling the identifiers
in its Current Population Survey. For those two periods, you'll have to use your imagination and make some inferences.
As we have emphasized previously, the Wage Growth Tracker is not a direct measure of the typical change in overall wage costs
because it only looks at (more or less) continuously employed workers. But it should reflect the amount of excess slack in the labor
market. This point is illustrated in the following chart, which compares the Wage Growth Tracker with the unemployment gap
computed from the Congressional Budget Office's (CBO) estimate of the long-run natural rate of unemployment.

As the chart shows, our measure of nominal wage growth has historically tracked the cyclical movement in the unemployment rate
gap estimate fairly well, at least since the mid-1980s. We think this feature is potentially important, because the true unemployment
rate gap is very hard to know in real time and hence is subject to potentially large revision. For example, in real time, the
unemployment rate was estimated to have fallen below the natural rate in the fourth quarter of 1994, but it is now thought to have not

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breached the natural rate until the first quarter of 1997—more than two years later. The Wage Growth Tracker is not subject to
revision (although it is subject to a small amount of sampling uncertainty) and hence could be useful in evaluating the reliability of the
unemployment rate gap estimate in real time.
This also is important from a monetary policy perspective if we are worried about the risk of the economy overheating. For example,
President Rosengren of the Boston Fed described why he dissented at the most recent Federal Open Market Committee meeting
in favor of a quarter-point increase in the target range for the federal funds rate. His dissent, he said, arose partly from his concern
that the economy may overheat and drive unemployment below a level he believes is sustainable.
Currently, the CBO estimate of the unemployment rate gap looks like it is plateauing at close to zero. The fact that the Wage Growth
Tracker for the third quarter slowed a bit is consistent with that. But it's only one quarter of data, and so we'll closely monitor the
Wage Growth Tracker in the coming months to see what it suggests about the actual unemployment rate gap. We'll discuss what
observations we make here.
By John Robertson, a senior policy adviser in the Atlanta Fed's research department

January 7, 2016 in Education, Employment, Labor Markets | Permalink