We study the relation between workers' skill dispersion and firm productivity using a unique dataset of Italian manufacturing firms from the early eighties to the late nineties with individual records on all their workers. Our measure of skill is the individual worker's effect obtained as a...

The 1998 reform of the Italian retail trade sector delegated to the regional governments the regulation of entry of large retail shops. We use the local variation in regulation to determine the effects of entry barriers on firm performance for a representative sample of medium and large retail...