Fencing off silicon valley: Cross-border venture capital and technology spillovers

This paper concerns technology escaping from the United States and how much we should be concerned about it. This topic appears frequently in news articles, with the presumption that we should be very concerned. Since technology is non rival, maybe we shouldn’t be too concerned. Even after it’s escaped, we still have it. But, given security concerns, maybe we should be concerned about some of these technologies escaping. I applaud the authors for bringing rigorous analysis to this contentious issue.