The evolution of the U.S. skill premium over the past century has been characterized by a U-shaped pattern. The previous literature has attributed this observation mainly to the existence of exogenous, unexpected technological shocks or changes in institutional factors. In contrast, this paper...

Our paper documents the importance of workers' ex-ante heterogeneity for labor market dynamics and for the composition of the unemployment pool. We show that workers with high wages have both lower separation rates and larger log-deviations of these separations over the business cycle than those...