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Patent Citations and Localization of Knowledge Spillovers: Evidence from Korea (in Korean)

Jihong Lee () and Yunmi Nam ()
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Jihong Lee: Department of Economics, Seoul National University
Yunmi Nam: Economic Research Institute, Bank of Korea

No 2019-14, Working Papers from Economic Research Institute, Bank of Korea

Abstract: This paper studies localization effects of knowledge spillovers in Korea using US patents granted over the period 1996-2015. The ¡°sample-matching¡± analysis initiated by Jaffe, Trajtenberg, and Henderson(1993) is adopted. We do not find evidence of positive localization effects in Korea. In particular, controlling for the existing geographic distribution of knowledge production, the frequency of domestic citations of Korean patents is no more than the citation frequency from overseas. We also examine localization effects across regions and industries. Our findings suggest a potential role for government policy aimed at promotion of positive innovation externalities within the Korean economy.

Keywords: Fourth industrial revolution; Innovation; Knowledge spillovers; Patent citation; Localization (search for similar items in EconPapers)
JEL-codes: O33 O34 O53 (search for similar items in EconPapers)
Date: 2019-03-08
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