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Borders and distance in knowledge spillovers : dying over time or dying with age? ; evidence from patent citations
Li, Yao - 2009
This paper uses a gravity framework to investigate the effects of distance as well as subnational and national borders in knowledge spillovers. Drawing on the NBER Patent Citations Database, we examine patent citations data at metropolitan level within the U.S. and the 38 largest patent-cited...
Persistent link: https://www.econbiz.de/10003833339
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Benchmarking U.S. University Patent Value and Commercialization Efforts : A New Approach
Hsu, David H. - 2019
university patents and commercialization performance based on comparative corporate patent value. Our procedure involves matching … university patents to patents granted to public corporations with similar patent characteristics to estimate the “potential value …” of these university patents by the stock market reactions to matched corporate patent grants. We then calibrate an …
Persistent link: https://www.econbiz.de/10012897855
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Strategic Patenting : Evidence from the U.S. Court of Appeals for the Federal Circuit
Hou, Yun - 2020
, if the legal protection of patents is stronger, incumbent businesses would reduce patenting. When the Court of Appeals … for the Federal Circuit assumed jurisdiction over patent appeals, it strengthened the legal protection of patents … find that post-CAFC, patents were more valuable commercially but not technologically superior, businesses reduced patenting …
Persistent link: https://www.econbiz.de/10012823955
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Foreign Competition and Domestic Innovation : Evidence from U.S. Patents
Autor, David H. - 2019
Manufacturing accounts for more than three-quarters of U.S. corporate patents. The competitive shock to this sector ….S. patents matched to corporate owners, we quantify how foreign competition affects domestic innovation. Rising import exposure …
Persistent link: https://www.econbiz.de/10012861314
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Long-Run Dynamics of the U.S. Patent Classification System
Lafond, Francois - 2018
introduce the assumption that classes have a regular chance to be split. Third, we study reclassification. The share of patents … belonging to the same 1-digit NBER category, but not always. We also document that reclassified patents tend to be more cited …
Persistent link: https://www.econbiz.de/10012934587
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Immigrant entrepreneurs and innovation in the U.S. high-tech sector
Brown, J. David; Earle, John S.; Kim, Mee Jung; Lee, … - 2019
We estimate differences in innovation behavior between foreign versus U.S.-born entrepreneurs in high-tech industries. Our data come from the Annual Survey of Entrepreneurs, a random sample of firms with detailed information on owner characteristics and innovation activities. We find uniformly...
Persistent link: https://www.econbiz.de/10011986036
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Foreign competition and domestic innovation : evidence from U.S. patents
Autor, David H.; Dorn, David; Hanson, Gordon H.; … - 2019
Manufacturing accounts for more than three-quarters of U.S. corporate patents. The competitive shock to this sector ….S. patents matched to corporate owners, we quantify how foreign competition affects domestic innovation. Rising import exposure …
Persistent link: https://www.econbiz.de/10012119210
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Measuring the Commercial Potential of Science
Masclans, Roger; Hasan, Sharique; Cohen, Wesley M. - National Bureau of Economic Research - 2024
This paper uses a large language model to develop an ex-ante measure of the commercial potential of scientific findings. In addition to validating the measure against the typical holdout sample, we validate it externally against 1.) the progression of scientific findings through a major...
Persistent link: https://www.econbiz.de/10014512116
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How the West Has Won : Regional and Industrial Inversion in U.S. Patent Activity
Johnson, Daniel K. N.; Brown, Amy - 2003
While it is clear that there has been a "regional inversion" in American patent activity over the past 25 years (i.e. relative rise of the Northwest and Southwest at the expense of the traditional invention hotbeds of the Northeast and Midwest), the reason is still open to speculation. Intuition...
Persistent link: https://www.econbiz.de/10014105756
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What Happens when Firms Patent? New Evidence from US Economic Census Data
Balasubramanian, Natarajan; Sivadasan, Jagadeesh - 2013
We build a new concordance between the NBER Patent Data and US Census micro-data, and use it to examine what happens when firms patent. We find strong evidence that increases in patent stock are associated with increases in firm size and scope as well as with changes in factor intensity. We find...
Persistent link: https://www.econbiz.de/10014026002