Low Employment Levels Blamed For Weak GDP Growth

 | Oct 05, 2014 02:22AM ET

This past week I found a post worth reading from the Peterson Institute for International Economics is a private, nonprofit, nonpartisan research institution devoted to the study of international economic policy.

Follow up:

A quote from the beginning of that post:

Labor economics used to be easy. All you had to do was watch the unemployment rate and that told you most of everything. As it went up things were bad and pay weakened. When the unemployment rate fell that meant the economy was getting better and that meant pay rises. Low unemployment meant big pay rises. High unemployment meant smaller rises. Simple. At some point the unemployment rate hit a brick wall as the economy reached full employment, and that point was well above zero, because in a capitalist economy firms die and are being born all the time. Once full employment is reached firms struggle to find workers and have to bid them away from other firms, so wages start to rise. Easy peasy. Sadly not any more.

A slight complication was that in bad times the unemployment rate tended to understate how bad things were. As the unemployment rate rose, workers lost their jobs, but instead of moving to unemployment they withdrew from the labor force to inactivity. Labor economists call these folks out-of-the-labor-force (OLF). Youngsters who couldn't find jobs became students in bad times, and this also causes inactivity to rise. In the upswing, employment often rose as these OLFs moved back to jobs. And it rose before unemployment fell.

This post makes two important points:

  • It suggested without proof that there was a correlation between wage growth and participation rate;
  • Wages are not going to improve before the unemployment rate gets below 4 percent.

In the graph below, the year-over-year change in per capita income (blue line) is plotted against the participation rate (red line). It does appear to have reasonable correlation between income and participation rates after the mid-1990s.