We study the optimal size of a pay-as-you-go social security program for an economy composed of both permanent-income and hand-to-mouth consumers. While previous work on this topic is framed within a two-period partial equilibrium setup, we study this issue in a life-cycle general equilibrium...

This article analyzes the long-term impact of the current individual retirement account (IRA) program on government debt. The initial work on this subject was conducted by Feldstein (1995), who argued that the traditional IRA has a favorable long-term effect on government debt. Yet, absent from...

We present a rule-of-thumb consumption model with participation in a ``Save More TomorrowTM'' (SMarT) plan, and we analytically derive the fraction of life-cycle wage increases that must be saved to offset a reduction in social security benefits resulting from an aging population (holding taxes...