We investigate minimum wage spillovers by exploiting the first-time introduction of a minimum wage within a quasi-experiment in a context with an extraordinary large bite: the German roofing industry. We find positive wage spillovers for medium-skilled workers with wages just above the minimum wage, but negative effects for high-skilled top earners in East Germany, where the bite was particularly pronounced. There, the minimum wage lowered both returns to skills and skill supply. We propose a theoretical model according to which negative spillovers occur whenever a negative scale effect dominates a positive substitution effect and provide empirical support for our theory.

Schlagworte

minimum wages, wage effects, spillover effects, wage restraints, returns to skills, unconditional quantile regression, scale effect, substitution effect, skill supply