This paper examines the risk aspects of a fully phased-in investment-based defined contribution Social Security plan … system. A higher saving rate provides a cushion' that reduces the risk of unacceptably low benefits. For example, saving 6 … annuity exceeds 92 percent of the benchmark benefit. We also study a modified plan in which retirees face no risk of …

This paper examines the risk aspects of an investment-based defined contribution Social Security plan. We focus on the … risk after the plan is fully phased in. Individuals deposit a fraction of wages to a Personal Retirement Account (PRA … cushion' that protects the individual from the risk of an unacceptably low level of benefits. For example, PRA deposits of 6 …