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来源类型Working Paper
规范类型报告
DOI10.3386/w28880
来源IDWorking Paper 28880
(When) Does Patent Protection Spur Cumulative Research Within Firms?
Ashish Arora; Sharon Belenzon; Matt Marx; Dror Shvadron
发表日期2021-06-07
出版年2021
语种英语
摘要We estimate the effect of patent protection on follow-on investments in corporate scientific research. We exploit a new method for identifying an exogenous reduction in the protection a granted patent provides. Using data on public, research-active firms between 1990 and 2015, we find that firms decrease follow-on research after a reduction in patent protection, as measured by a drop in internal citations to an associated scientific article. This effect is stronger for smaller firms and in industries where patents are traded less frequently. Our findings are consistent with a stylized model whereby patent protection is a strategic substitute for commercialization capability. Our results imply that stronger patents encourage follow-on research, but also shift the locus of research from big firms toward smaller firms and startups. As patent protection has strengthened since the mid-1980s, our results help explain why the American innovation ecosystem has undergone a growing division of innovative labor, where startups become primary sources of new ideas.
主题Development and Growth ; Innovation and R& ; D
URLhttps://www.nber.org/papers/w28880
来源智库National Bureau of Economic Research (United States)
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资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/586554
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GB/T 7714
Ashish Arora,Sharon Belenzon,Matt Marx,et al. (When) Does Patent Protection Spur Cumulative Research Within Firms?. 2021.
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