In this paper we study the quantitative properties of alternative social security regimes in a large overlapping generations model where households face uninsurable idiosyncratic income shocks. We study this issue in two model economies. The first is the standard one characterized by exogenous...

This paper studies how international capital mobility affects aggregate volatility by considering the case of imperfect financial markets such that only physical capital serves as collateral for international borrowing, whereas human capital cannot. We find that credit-rationed, small open...