In this lecture I first give an explanation for invidious preferences based on the (evolutionary) competition for resources. Then I show that these preferences have wide ranging and empirically relevant effects on labor markets, such as: workplace skill segregation, gradual promotions, wage...

I develop a stylized partial on-the-job equilibrium search model which incorporate a spatial dimension. Workers reside on a circle and can move at a cost. Each point on the circle has a wage distribution. Implications about wages and job mobility are drawn from the model and tested on Danish...

Contrary to most European countries, indexation rules of the French minimum wage are very precise. However, three possible rules are consistent with the texts, which diverge in particular in periods of deflation or of negative growth of real wages. The alternative interpretations can have a...

Models in which employers learn about the productivity of young workers, such as Altonji and Pierret (2001), have two principal implications: First, the distribution of wages becomes more dispersed as a cohort of workers gains experience; second, the coefficient on a variable that employers...

Estimates of labor mobility costs are needed to assess the responses of employment and wages to trade shocks when factor adjustment is costly. Available methods to estimate those costs rely on panel data, which are seldom available in developing countries. We propose a method to estimate...

We offer a model that combines a knowledge based organizational structure with progressive learning of employees’ talent. We show that higher span of control is associated with better selected managers, higher wages, higher probability to be promoted, and higher turn-over in the early career...