The quantitative literature has documented that a privatization of the social security system generates large long-run welfare gains at the cost of welfare losses for transition generations. In this article, we maximize over the entire policy space, following the optimal fiscal policy approach....

This article accounts for the boom in homeownership from 1994 to 2005 by examining the roles of demographic changes and mortgage innovations. To measure the impact of these factors, we construct a quantitative general equilibrium overlapping generation model with housing. In the long-run,...