We present a model that links heterogeneity of preferences across ethnic groups in a city to the amount and type of public goods the city supplies. We test the implications of the model with three related data sets: U. S. cities, U. S. metropolitan areas, and U. S. urban counties. Results show that the shares of spending on productive public goods—education, roads, sewers and trash pickup—in U. S. cities (metro areas/urban counties) are inversely related to the city's (metro area's/county's) ethnic fragmentation, even after controlling for other socioeconomic and demographic determinants. We conclude that ethnic conflict is an important determinant of local public finances.

This paper analyzes the interplay between social norms and economic incentives in the context of work decisions in the modem welfare state. We assume that to live off one's own work is a social norm, and that the larger the population share adhering to this norm, the more intensely it is felt by the individual. Individuals face two choices: one economic, whether to work or live off public transfers; and one political, how large the transfer should be. The size of the transfer and the intensity of the social norm are determined endogenously in equilibrium.