Does granting legal status to undocumented workers raise employment, wages, and output?
Core argument: France's July 1981 regularization program under President François Mitterrand covered undocumented workers making up 2.0% of workers in Paris and nearly 1% of all French workers, predominantly male, low-skill, and concentrated in the Paris region.
This paper documents the economic consequences of a large amnesty program implemented in France. In July 1981, the newly elected government of President François Mitterrand proposed to regularize all undocumented workers. The regularized workers were predominantly male, low-skill, and lived disproportionately in the Paris region. The regularized immigrants composed 2.0% of workers in Paris and nearly 1% of all workers in France. In short, by reducing monopsony power in the undocumented labor market, a regularization program improves labor market efficiency and can generate a substantial increase in output, a “regularization surplus.” Our empirical analysis of employment, wage, and output data in the French labor market confirms that the regularization program indeed had positive effects on the employment and wages of many groups, and particularly for male, low-skill workers. Moreover, there was a sizable jump in the growth rate of per-capita GDP in the affected region, suggesting an increase in total French GDP of around 1%.

