“…The research universally concludes that teachers' defined benefit retirement plans have particularly strong financial incentives tied to timing of exit from teaching. Costrell and Podgursky (2009) examine the annual accrual of pension wealth in six large teacher retirement systems-Ohio, Arkansas, California, Massachusetts, Missouri, and Texas-for a stylized teacher that enters teaching at age 25 and teaches continuously until exiting permanently. In all cases, teachers face sharply nonlinear pension wealth accrual schedules that provide large financial incentives to continue working to a specific age or for a certain number of years in the system.…”