英文文献:Trade Induced Technological Change: Did Chinese Competition Really Increase European Innovation?
英文文献作者:Douglas L. Campbell,Karsten Mau
英文文献摘要:
Bloom, Draca, and Van Reenen (2016) find that Chinese competition induced a rise in patenting, IT adoption, and TFP by up to 30% of the total increase in Europe in the early 2000s. Yet average patents per firm fell by 94% for the most China-competing firms in their sample, but also by 94% for non-competing firms. Their findings for patents appear to be driven by the decision to normalize patents by adding one (i.e., patents+1). Since China-competing firms had fewer patents to begin with, adding one induces bias, making it appear as though patents declined by a smaller percentage in the China-competing sectors. When we estimate a negative binomial regression using patents as the dependent variable, correcting several coding errors, we find no (or even negative) correlation between Chinese competition and patent growth.


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