Title
Do Stronger Patents Induce More Innovation? Evidence from the 1988 Japanese Patent Law Reforms
Date of Original Version
Spring 2001
Type
Article
Abstract or Table of Contents
Does an expansion of patent scope induce more innovative effort by firms? We examine responses to the Japanese patent reforms of 1988. Interviews with practitioners and professional documents for patent agents suggest the reforms significantly expanded the scope of patent rights. However, econometric analysis using both Japanese and U.S. patent data on 307 Japanese firms finds no evidence of an increase in either R&D spending or innovative output which could be plausibly attributed to patent reform.
Comments
RAND Journal of Economics, vol. 32, no. 1, Spring 2001, pp. 77-100.