One of the most stylized facts in labor economics is the finding that wages tend to rise with job duration but what is the role of productivity between this relation? Intuitively, it seems rather unspectacular that experienced workers' earnings are higher than otherwise comparable junior...

We examine theoretically and empirically the properties of the equilibrium wage function and its implications for policy. Our emphasis is on how the researcher approaches economic and policy questions when there is labor market heterogeneity leading to a set of wages. We focus on the application...