Upjohn Author ORCID Identifier

https://orcid.org/0000-0002-3600-9774

Publication Date

10-28-2025

Series

Upjohn Institute working paper ; 25-423

DOI

10.17848/wp25-423

Abstract

We estimate the effect of the Mexican drug war on Mexico-to-U.S. migration and the resulting effects on population, employment, and wages in U.S. labor markets. Our empirical strategy compares U.S. counties differentially connected to Mexican municipalities through historical migration networks, using drug violence triggered by close municipal elections in 2007–2008 as a source of exogenous variation. Over the following decade, migrants fleeing the violence—the vast majority of whom are undocumented—cause native-born U.S. workers’ employment rates to increase and unemployment rates to fall, while wages do not change. Employment gains are largest for natives without a college degree. Employment effects fade after a decade.

Issue Date

October 2025

Note

Upjohn project #69115

Subject Areas

LABOR MARKET ISSUES; Wages, health insurance and other benefits; INTERNATIONAL ISSUES; Immigration

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Citation

Borgschulte, Mark, Yuci Chen, and Eduardo Medina-Cortina. 2025. "Migration and U.S. Labor Market Effects of the Mexican Drug War." Upjohn Institute Working Paper 25-423. Kalamazoo, MI: W.E. Upjohn Institute for Employment Research. https://doi.org/10.17848/wp25-423