Cumming, Douglas J.; Morck, Randall; Rong, Zhao; Zhang, … - National Bureau of Economic Research - 2024
the number of patents filed, citations to those patents, and début patents by firms with no previous patents. These …. Our difference-in-differences regressions use patents and PBL reforms for 33 countries from 1990 to 2002, with subsequent … years used to measure citations to patents in this period …