This paper reviews the recent evidence on U.S. immigration, focusing on two key questions: (1) Does immigration reduce the labor market opportunities of less-skilled natives? (2) Have immigrants who arrived after the 1965 Immigration Reform Act successfully assimilated? Looking across major...

This paper uses 1990 Census data to study the effects of immigrant inflows on the labor market opportunities of natives and older immigrants. I divide new immigrants, older immigrants, and natives into distinct skill groups and focus on skill-group-specific outcomes within cities. An important...

The paper analyzes the effect of the generosity of the welfare state on the skill composition of immigrants. We develop a parsimonious model in which the effect of an increase in the generosity (and taxes) of the welfare state on the skill composition of immigrants under free migration is...

Skilled migrants typically contribute to the welfare state more than they draw in benefits from it. The opposite holds for unskilled migrants. This suggests that a host country is likely to boost (respectively, curtail) its welfare system when absorbing high-skill (respectively, low-skill)...

Mexican immigrants were historically clustered in a few cities, mainly in California and Texas. During the past 15 years, however, arrivals from Mexico established sizeable immigrant communities in many "new" cities. We explore the causes and consequences of the widening geographic diffusion of...

Rising immigrant inflows have substantially affected the size and composition of the U.S. workforce. They are also exerting an even bigger intergenerational effect: at present one-in-ten native born children are in the 'second generation' born to immigrant parents. In this paper we present a...