Disclosure, Patenting, and Trade Secrecy

Abstract

Abstract Patent applications often reveal proprietary information to competitors, but does such disclosure harm firms or also benefit them? We develop and empirically support a theory showing that when firms patent enhancements to incumbent, nondisruptive technologies, they can cooperate more easily on these technologies, increasing their profitability. The downside of cooperating on nondisruptive technologies is that the investment in and commitment to disruptive technologies decline. To improve their commitment to disruptive technologies, some firms rely more on trade secrecy. We provide empirical support for these predictions. We document that after a patent reform that made information about patent applications widely accessible, firms cooperate more and charge higher markups. Furthermore, the nature of patented innovation has changed, with the proportion of nondisruptive patents increasing substantially. Finally, while some firms start patenting more, others patent less and rely more on trade secrecy, with the response depending on the attractiveness of firms' innovation prospects.

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