"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 legalization on the earnings of previously-undocumented workers. It is shown that the average hourly wage rate of male Mexican legal immigrants in the United States was 41.8% higher than that of undocumented workers while female legal immigrants earned 40.8% more."
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