Drug Violence, Immigration Enforcement, and Selectivity: Evidence from Mexican Immigrants

Abstract

We study how drug violence in Mexico and internal immigration enforcement in the United States affect the selectivity of Mexican immigrants. We find that violence is associated with an increase in English proficiency among immigrants. Furthermore, the deterrence effect of interior enforcement varies: it is associated with increases in the probability of observing undocumented immigrants with prior migration experience, who are English proficient and have higher unobservable abilities. Those factors are associated with a higher probability of finding a job, and higher productivity and earnings in the US labor market.