We study the aggregate effects of a social security reform in a large overlapping generations model where markets are incomplete and households face uninsurable idiosyncratic income shocks. We depart from the previous literature by assuming that, because of lack of commitment in the credit...

In this paper we analyze changes in the conditional distributions of male earnings in Spain during the 1980s. We use a large new database of records on individual workers and firms from the Spanish Social Security system for the period 1980-1987. The data set is an unbalanced panel subject to...

In this paper we survey the features of different approaches available in the literature used to study the effects of the aging of the population on Social Security expenditures. We comment on the weaknesses and strengths of each of them, and perform a quantitative analysis by comparing the...