Structural Trends In Employment By Age Group

 | Dec 10, 2014 04:49AM ET

Note from dshort: I've updated this commentary with the latest numbers from last week's Employment Report.

The Labor Force Participation Rate (LFPR) is a simple computation: You take the Civilian Labor Force (people age 16 and over employed or seeking employment) and divide it by the Civilian Noninstitutional Population (those 16 and over not in the military and or committed to an institution). The result is the participation rate expressed as a percent.

The first chart below splits up the LFPR since 1948 in two ways: by age and by gender. For the former, I chose the 25-64 age cohorts to represent what we traditionally think of as the "productive" (pre-retirement age) work force. The BLS has data for ages 16 and over, but the historical trend toward college attendance has been quite dramatic over this timeframe. So I opted for age 25 as the lower boundary to reduce the college-years skew.

Note the squiggly lines for the productive years and jumbled dots for the older cohorts. These result from my use of non-seasonally adjusted data. The BLS does have seasonally adjusted data for many cohorts, but not the older ones, so I used the non-adjusted numbers for consistency.

The next chart eliminates the squiggles with a simple but effective seasonal adjustment suitable for long timeframes, a 12-month moving average. I've also added some callouts to quantify the data in 1948 and the present.

It doesn't take Ph.D. in sociology to recognize some significant changes in the chart above. The growth of women in the workplace, the solid red line, was a major trend. The financial advantage of two income households was boosted by Title VII of the Civil Rights Act of 1964, which prohibits discrimination by race, color, religion, sex, or national origin. The Age Discrimination in Employment Act of 1967 helped to stabilize the decline in the 65 and over participation rate, at least until the 11-month recession that started in December 1969.

As for the age 25-64 cohorts, the participation rate for men peaked way back in May 1954 at 95.9%; for women it was fifty years later in October 2004 at 72.8%, and for the combined cohort is was in March 1998 at 80.2%.

The dotted lines representing ages 65 and over also illustrate some dramatic changes. A vision of the good life in retirement, assisted by a burgeoning Social Security system, was a standard expectation for pre-Boomer generations. The advent of Medicare in 1965 and Social Security COLAs (cost-of-living adjustments) in 1975 added to their confidence in the Golden Years.

However, the LFPR for the "elderly" (a term I use respectfully as a member of that cohort) flattened out in the mid-1980s and then began increasing -- slowly at first and more significantly around the turn of the century, as the numbers for the productive cohort continued to decline. The next chart gives us a clearer look at the relative patterns of growth and contraction.

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Since January 2000, the participation rate for all the elderly has soared by 50 percent and for elderly women by 67 percent.

I've added directional arrows to highlight a striking trend for the older cohorts. The growth for women has a more dramatic upward slope, although it has flattened out over the past six months. The growth for men peaked in May 2013 and is now contracting.

Labor Force Participation Rate by Age Groups Since 2000

The next chart shows the data for six age cohorts since 2000 with no gender distinction. Two recessions and two savage market selloffs were no doubt major drivers of the trends we see here. For this close-up I used the BLS's seasonally adjusted data for the four cohorts ranging in age from 16-54, but only non-seasonally adjusted data is available for the two older cohorts, which accounts for the more noticeable squiggles.

For an apples-to-apples comparison, here is the non-seasonally adjusted data for all six cohorts smoothed with 12-month moving averages.

While the LFPR growth for the elderly is the most striking feature in the chart above, we also see a noticeable decline for the youngest cohort. A significant driver of this trend has been the decision to stay in (or go back to) school for more education. Supporting evidence is found in the eye-popping growth of student loan debt, especially since the onset of the Great Recession. To be sure, some of that trend is accounted for by older cohorts heading back to school in hopes of improving their employment prospects.