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 combines the perspective of an international economist with that of an economic geographer to reflect on how and to what extent the Internet will affect the location of economic activity. Even after the very substantial transportation and communication improvements during the 20th...