Effects of early patent disclosure on knowledge dissemination: evidence from the pre-grant publication system introduced in the United States
Okada, Yoshimi and Sadao Nagaoka
WP#15-12 一橋大学イノベーション研究センター (2015/07/10)
In order to assess the disclosure function of the patent system, this study examined the impact of the pre-grant publication system introduced in the United States in 2000. Unlike earlier studies, the applicant (inventor) non-self-citations (excluding examiner citations) were used to track knowledge flow. The causal effects of disclosu…