In a static setup, migration of unskilled labor may be resisted by the entire native-born population because, being relatively low earners, migrants are net beneficiaries of the fiscal system. However, the paper shows that with a pay-as-you-go pension, an important pillar of the welfare state,...

Migration of young workers (as distinct from retirees), even when driven in by the generosity of the welfare state, slows down the trend of increasing dependency ratio. But, even though low-skill migration improves the dependency ratio, it nevertheless burdens the welfare state. Recent studies...

Data for the United States and countries in Western Europe indicate a negative correlation between the dependency ratio and labor tax rates and the generosity of social transfers, after controlling for other factors that influence the size of the welfare state. This is despite the increased...

This paper formulates and estimates an open-economy overlapping generation general-equilibrium model of endogenous heterogeneous human capital in the form of schooling and on-the-job training. Physical capital accumulation is also analyzed. We use the model to explain rising wage inequality in...

Migration has important implications for the financial soundness of the pension system, which is an important pillar of the welfare state. While it is common sense to expect that young migrants, even if low-skilled, can help society pay the benefits to the currently elderly, it may nevertheless...

This paper defines and estimates general equilibrium treatment effects. The conventional approach in the literature on treatment effects ignores interactions among individuals induced by the policy interventions being studied. Focusing on the impact of tuition policy, and using estimates from...

This paper examines the bequest\gift behavior of altruistic parents who do not know their children's abilities and cannot observe their children's work effort. Parents are likely to respond to this information problem by making larger bequests to higher earning children and by using their...