Job-Hopping in Silicon Valley: Some Evidence Concerning the Microfoundations of a High-Technology Cluster
利用新数据发现硅谷计算机行业大学学历男性的跳槽率高于州外集群，但加州其他计算机集群的跳槽率与硅谷相似，这归因于加州法律不执行竞业禁止协议。
Observers of Silicon Valley's computer cluster report that employees move rapidly between competing firms, but evidence supporting this claim is scarce. Job-hopping is important in computer clusters because it facilitates the reallocation of talent and resources toward firms with superior innovations. Using new data on labor mobility, we find higher rates of job-hopping for college-educated men in Silicon Valley's computer industry than in computer clusters located out of the state. Mobility rates in other California computer clusters are similar to Silicon Valley's, suggesting some role for features of California law that make noncompete agreements unenforceable. Consistent with our model of innovation, mobility rates outside computer industries are no higher in California than elsewhere. Copyright by the President and Fellows of Harvard College and the Massachusetts Institute of Technology.