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...

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...