One of the most salient and relevant dimensions of team heterogeneity is ethnicity. We measure the impact of ethnic diversity on the performance of business teams using a field experiment. We follow 550 students who set up 45 real companies as part of their curriculum in an international...

"The economic approach to cities relies on a spatial equilibrium for workers, employers and builders. The worker's equilibrium implies that positive attributes in one location, like access to downtown or high wages, are offset by negative attributes, like high housing prices. The employer's...