U.S. employers can check whether the workers they hire are legally eligible for employment using E-Verify, a free electronic system run by the federal government. We use confidential data from the U.S. Department of Homeland Security to provide the first examination of whether increases in...

This paper studies the differences in earnings between Mexican legal and illegal immigrants in the United States. The analysis includes a cross-sectional examination of the wage differences between legal and undocumented workers as well as a longitudinal analysis examining the impact of...