Time to completion of the baccalaureate degree has increased markedly in the United States over the past three decades. Using data from the National Longitudinal Survey of the High School Class of 1972 and the National Educational Longitudinal Study of 1988, we show that the increase in time to degree is localized among those who begin their postsecondary education at public colleges outside the most selective universities. We consider several potential explanations for these trends. First, we show that changes in the college preparedness and the demographic composition of degree recipients cannot account for the observed increases. Instead, our results identify declines in collegiate resources in the less selective public sector and increases in student employment as potential explanations for the observed increases in time to degree.

While the retirement security landscape has changed drastically for most workers over the last twenty years, traditional defined benefit (DB) pension plans remain the overwhelming norm for K–12 teachers. Because DB plans pay off fully with a fixed income after retirement only if a teacher stays in the profession for decades and yield little or nothing if a teacher leaves early, DB plans induce a strong, nonlinear relationship between years of tenure and benefit accrual. One implication is that as many current teachers approach eligibility for full pensions, there are strong incentives for retirement and associated consequences in the teacher labor market. In this article, we assess the key features of DB plans, discuss the general incentive effects, and consider the application to the particular case of teachers. This work highlights the importance of assessing the characteristics of teachers who respond most to the retirement timing incentives.