The belief that immigrants generate beneficial externalities in their host countries, specifically in the form of an increased opportunity and ability of firms to expand their foreign trade, has recently been challenged by George Borjas in Heaven?s Door (1999, p. 97) as having no empirical...

We use panel data from El Salvador and investigate the intra-household allocation of labor as a risk-coping strategy. Adverse agricultural productivity shocks both increased male migration to the US and male agricultural labor supply. This is not a contradiction if there were non-monotonic...