The last two decades have witnessed the complete or parital privatization of public pension systems in several countries, and many proposals have been made to privatize the U.S. Social Security system either completely or partially. The motivation behind such proposals is that privatization will...

In this paper we examine the role of social security in an economy populated by overlapping generations of individuals with time-inconsistent preferences who face mortality risk, individual income risk, and borrowing constraints. Agents in this economy are heterogeneous with respect to age,...