This study examines how minimum wage laws affect the share of immigrants receiving welfare benefits. Minimum wage increases might have larger effects among low-skilled immigrants than among low-skilled natives because, on average, immigrants are less productive. We develop an analytical framework in which a government legislated minimum wage increase promotes a decrease in labor demand and an increase in the earned wage. The net impact on the expected wage is then ambiguous and so is the impact on search effort of unemployed. However, we expect the reduction in labor demand to be more important for immigrants due to their lower productivity. Immigrants remain unemployed and eventually become welfare recipients. Using the French Labor Force ...