This paper presents the methods and preliminary findings from IMPALA, a database that systematically measures the character and stringency of immigration policies. Based on a selection of data for six pilot countries between 1990 and 2008, we document the variation of immigration policies across...

We exploit the non-linearity in the level of minimum wages across US States created by the coexistence of federal and state regulations to investigate how minimum wages affect the labor market impact of immigration. We find that the effects of immigration on labor market outcomes of native...