Maintenance work on the ZORA database servers is scheduled for Thursday 25th July 2019 from 19:00-20:00. During this period ZORA and JDB will not be available. Thank you for your understanding.
Autor, David; Dorn, David; Hanson, Gordon; Pisano, Gary; Shu, Pian (2017). Foreign competition and domestic innovation: evidence from U.S. patents. NBER Working Papers 22879, National Bureau of Economic Research.