We provide measures of ethnic and racial segregation in urban consumption. Using Yelp reviews, we estimate how spatial and social frictions influence restaurant visits within New York City. Transit time plays a first-order role in consumption choices, so consumption segregation partly reflects...

How global are the gains from innovation? When firms operate production plants in multiple countries, technological improvements developed in one location may be shared with foreign sites for efficiency gain. We develop a model that accounts for such transfer, and apply it to measure private...

We study state taxes as a potential source of spatial misallocation in the United States. We build a spatial general equilibrium framework that incorporates salient features of the U.S. state tax system, and use changes in state tax rates between 1980 and 2010 to estimate the model parameters...

Much of the variation in international trade volume is driven by firms' extensive margin decision to participate in export markets. To understand this decision and predict the sensitivity of export flows to changes in trade costs, we estimate a standard model of firms' export participation. In...

We perform a quantitative analysis of observed changes in U.S. between-group inequality between 1984 and 2003. We use an assignment framework with many labor groups, equipment types, and occupations in which changes in inequality are caused by changes in workforce composition, occupation demand,...

Exporting firms often enter foreign markets that are similar to previous export destinations. We develop a dynamic model in which a firm's exports in a market may depend on how similar the market is to the firm's home country (gravity) and to its previous export destinations (extended gravity)....

Many economic decisions involve a binary choice - for example, when consumers decide to purchase a good or when firms decide to enter a new market. In such settings, agents' choices often depend on imperfect expectations of the future payoffs from their decision (expectational error) as well as...

Many economic decisions involve a binary choice - for example, when consumers decide to purchase a good or when firms decide to enter a new market. In such settings, agents' choices often depend on imperfect expectations of the future payoffs from their decision (expectational error) as well as...

This paper analyses the determinants of grades achieved in three core subjects by first-year Economics undergraduate students at Universidad Carlos III de Madrid, over the period 2001-2005. Gender, nationality, type of school, specialization track at high school and the grades at the university...