Many workers with low levels of educational attainment immigrated to the United States in recent decades. In a simple model exploiting comparative advantage we show that if less-educated foreign and native-born workers specialize in performing different tasks, immigration will cause natives to...

How many "American jobs" have U.S.-born workers lost due to immigration and offshoring? Or, alternatively, is it possible that immigration and offshoring, by promoting cost-savings and enhanced effciency in firms, have spurred the creation of jobs for U.S. natives? We consider a multi-sector...

In this paper we analyze the effect of immigrants on natives' job specialization in Western Europe. We test whether the inflow of immigrants changes employment rates or the chosen occupation of natives with similar education and age. We find no evidence of the first and strong evidence of the...