Retirement saving is undergoing a fundamental change as employers shift from defined benefit pension plans to defined contribution plans, such as 401(k) accounts. Defined contribution plans have important advantages: they allow households to customize their retirement saving to their own risk preferences and circumstances, they insulate pensioners from potential bankruptcies of their employers, and although there may be a modest vesting period, they allow workers to move from job to job without risking their pensions. These plans also place much greater burdens on consumers to make good financial decisions. But there is widespread concern that many households are not up to the task. This Working Paper, the sixth in the Squam Lake Working Group series distributed by the Center for Geoeconomic Studies, analyzes this concern and recommends measures that will improve the performance of the nation's retirement saving system.