In this paper, we develop an economic geography model in which firms sell product varieties with heterogeneous demands. We show that firms that sell products with higher demand choose to establish their plants in larger countries, which provide better access to the most frequently demanded and...

This paper studies how firm heterogeneity in terms of productivity affects the balance between agglomeration and dispersion forces in the presence of pecuniary externalities through a selection model of monopolistic competition with endogenous markups. It shows that firm heterogeneity matters....

Over the last two decades, China has embarked on an ambitious program of expressway network expansion. By facilitating market integration, this program aims to promote efficiency at the national level and contribute to the catch-up of lagging inland regions. This paper evaluates the short-run...

This paper studies the regional distribution of benefits from trade in Mexico after the North American Free Trade Agreement (NAFTA). Specifically, we ask whether or not NAFTA increased the concentration of economic activity in Mexico. Unlike previous work which uses state-level data, we identify...