Various theories have been advanced for why employees leave incumbent firms to found firms in the same industry, which we call spinoffs. We review the accumulating evidence about spinoffs in various high-tech industries, highlighting the central role often played by disagreements. Because...

We construct a model of industry evolution in which the central force for change is the creation and destruction of submarkets. Firms expand when they are able to exploit new opportunities that arrive in the form of submarkets; they contract and ultimately exit when the submarkets in which they...

Most existing models of employee spinoffs assume they are driven by a desire to implement new ideas. However, history is replete with examples of spinoffs that were launched to continue with old ideas that their parents were in the process of abandoning. We develop a model of technology choice...

Most existing models of employee spinoffs assume they are driven by a desire to implement new ideas. However, history is replete with examples of spinoffs that were launched to continue with old ideas that their parents were in the process of abandoning. We develop a model of technology choice...

We analyze the rate of formation, the characteristics, and the performance of different types of new firms in Sweden over a decade. Comparisons to Denmark, Brazil, and the U.S. suggest that the environment for new firm formation in Sweden is not markedly different than elsewhere. In line with...

During its early and formative years, the U.S. tire industry was heavily concentrated around Akron, Ohio. We test the extent to which entrants in Ohio were attracted to the Akron area by agglomeration benefits, contributing to a self-reinforcing process envisioned in many modern theories of...

We analyze the rate of formation, the characteristics, and the performance of different types of new firms in Sweden over a decade. Comparisons to Denmark, Brazil, and the U.S. suggest that the environment for new firm formation in Sweden is not markedly different than elsewhere. In line with...

Geographic clustering of industries is typically attributed to localized, pecuniary or non-pecuniary externalities. Recent studies across innovative industries suggestthat explosive cluster growth is associated with the entry and success of spinoff firms. We develop a model to explain the...