This paper analyzes the effects of new business formation on industry growth. Dynamic panel techniques are used to test two hypotheses. First, does hit-andrun competition secure efficiency in an industry? Second, do innovative startups lead to amplified innovations by diminishing the knowledge...

We identify the impact of local firm concentration on incumbent performance in a historic setting that has quasi-experimental characteristics. 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...

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...