Common culture and common language facilitate trade between people. Minorities have incentives to become assimilated and to learn the majority language so that they have a larger pool of potential trading partners. The value of assimilation is larger to someone from a small minority than to one...

We study the cultural integration of immigrants, estimating a structural model of marital matching along ethnic dimensions, exploring in detail the role of fertility, and possibly divorce in the integration process. We exploit rich administrative demographic data on the universe of marriages...

We examine the role of ethnic politics at the local level in supplying public goods within a framework that incorporates two sides to ethnic groups: an inclusionary side associated with internal cooperation and an exclusionary side associated with the disregard for others. The inclusionary...

This paper shows that the level of deforestation in Indonesia is positively related to the degree of ethnic fractionalization at the district level. To identify a casual relation we exploit the exogenous timing of variations in the level of ethnic heterogeneity due to the creation of new...

We present a model that links heterogeneity of preferences across ethnic groups in a city to the amount and type of public good the city supplies. We test the implications of the model with three related datasets: US cities, US metropolitan areas, and US urban counties. Results show that...

This paper develops a measure of segregation based on two premises: (1) a measure of segregation should disaggregate to the level of individuals, and (2) an individual is more segregated the more segregated are the agents with whom she interacts. Developing three desirable axioms that any...

What obstacles prevent the most productive technologies from spreading to less developed economies from the world's technological frontier? In this paper, we seek to shed light on this question by quantifying the geographic and human barriers to the transmission of technologies. We argue that...

We survey and assess the literature on the positive and negative effects of ethnic diversity on economic policies and outcomes. Our focus is on both focus both cities in developed countries (the US) and villages in developing countries. We also consider the endogenous formation of political...