We identify the impact of local firm concentration on incumbent performance with a quasi natural experiment. When Germany was divided after World War II, many firms in the machine tool industry fled the Soviet occupied zone to prevent expropriation. We show that the regional location decisions...

This paper takes a new approach to testing the impact of state environmental regulatory stringency on firms' location decisions, focusing on firms' allocation of production across states. We use Census data for the paper industry to measure the share of each firm's production in each state...

In this paper, I examine how the growth of offshore assembly in Mexico has affected manufacturing activity in U.S. border cities. Under the offshore assembly provision of the U.S. tariff schedule, goods that are assembled abroad using U.S.-manufactured components receive preferential tariff...