Source: Maria Donovan Fitzpatrick, National Bureau of Economic Research (NBER), NBER Working Paper No. w22698, September 2016
From the abstract:
Labor force participation rates of college-educated women ages 60 to 64 increased by 20 percent (10 percentage points) between 2000 and 2010. One potential explanation for this change stems from the fact that fewer college-educated women in the more recent cohorts were ever teachers. This occupational shift could affect the length of women’s careers because teaching is a profession where workers are covered by defined benefit pensions and, generally, defined benefit pensions allow workers to retire earlier than Social Security. I provide evidence supporting the hypothesis and show that older college-educated women who worked as teachers do not experience increases in labor force participation as large as their counterparts who never taught.