The Shift from Traditional Pensions to 401(k)s: Retirement Risks and the Timing of Retirement
By Rosemary Kaiser, Xiaohui sun & Yang Xuan U.S. retirement plans have shifted sharply from defined benefit to defined contribution setups. How has this change affected retirement and savings behavior? We develop a quantitative life-cycle model where retirement plans differ in their exposure to longevity and investment risk. Holding the present-value cost of benefits fixed, these differences generate distinct savings and retirement incentives across plan types. The model replicates observed differences in savings and retirement behavior and implies that the...
