Related Experiment Video
Updated: Feb 7, 2026

Manipulation of Gene Function in Mexican Cavefish
Published on: April 22, 2019
Immigration Restrictions as Active Labor Market Policy: Evidence from the Mexican Bracero Exclusion
Michael A Clemens1, Ethan G Lewis2, Hannah M Postel3
1Center for Global Development and IZA, 2055 L Street NW, 5 floor, Washington, DC 20036 USA.
Abstract:
An important class of active labor market policy has received little impact evaluation: immigration barriers intended to raise wages and employment by shrinking labor supply. Theories of endogenous technical advance raise the possibility of limited or even perverse impact. We study a natural policy experiment: the exclusion of almost half a million Mexican 'bracero' farm workers from the United States to improve farm labor market conditions. With novel archival data we measure state-level exposure to exclusion, and model the labor-market effect in the absence of technical change. We reject such an effect and fail to reject a null effect.
Related Concept Videos
The Evidence for Evolution
The Pauli Exclusion Principle
Restriction Enzymes
The host bacteria protect their own genomic DNA from these enzymes by methylating these sites. Some...
Size-Exclusion Chromatography
Silica particles offer advantages such as rigidity,...
Cardiomyopathy IV: Restrictive Cardiomyopathy
Hepatic Drug Clearance: Restrictive and Nonrestrictive Clearance
Most drugs undergo restrictive clearance, which is proportional to the...

