Delinquents compete with each other in criminal activities but benefit from being friends with other criminals by learning and acquiring proper know-how on the crime business. We study the subgame-perfect Nash equilibrium of this game in which individuals decide first to work or to become a...

This article provides a unified explanation for why blacks commit more crime, are located in poorer neighborhoods, and receive lower wages than whites. If everybody believes that blacks are more criminal than whites-even if there is no basis for this-then blacks are offered lower wages and, as a...

We present a new way of modeling local labor markets by linking the space of workers' skills and the physical space of cities. The key lesson of our analysis is that firms exploit workers in these two spaces by setting wages that are below the competitive level. The degree of monopsony power...