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Understanding The Effects Of Legalizing Undocumented Immigrants, Joan Monràs, Javier Vázquez-Grenno, Ferran Elias

Upjohn Institute Working Papers

This paper investigates the consequences of the legalization of around 600,000 immigrants by the unexpectedly elected Spanish government of Zapatero following the terrorist attacks of March 2004 (Garcia-Montalvo, 2011). Using detailed data from payroll-tax revenues, we estimate that each newly legalized immigrant increased local payroll-tax revenues by 4,189 euros on average. This estimate is only 55 percent of what we would have expected from the size of the influx of newly documented immigrants, which suggests that newly legalized immigrants probably earned lower wages than other workers and maybe affected the labor-market outcomes of those other workers. We estimate that the …