The purpose of this volume is to analyze the microfoundations of knowledge spillovers. The microeconomic analysis of spillovers leads to the insight that the spillover and flow of knowledge is not at all automatic. Instead, this volume suggests that a filter exists between knowledge and its...

In high-tech industries, one important method of diffusion is through employee mobility: many of the entering firms are started by employees from incumbent firms using some of their former employers' technological know-how. This paper explores the effect of incorporating this mechanism in a...