Many countries around the world have large public pension programs. Traditionally, these programshave been used to induce retirement by the elderly in order to free up jobs for the young andto redistribute income across generations. This paper provides an efficiency rationale for the...

Many countries around the world have large public pension programs with signif-icant cross-cohort redistribution. This paper provides a rationale for such programsin a lifecycle framework with search and matching frictions in the labor market. Inthe model, public pension programs alter the age...

A popular view about social security, dating back to its early days of inception, is that it is a means for young, unemployed workers to "purchase" jobs from older, employed workers. The question we ask is: Can social security, by encouraging retirement and hence creating job vacancies for the...