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Please use this identifier to cite or link to this item: http://hdl.handle.net/2344/1080

タイトル: Innovation networks in China, Japan, and Korea : further evidence from U.S. patent data
著者: Nabeshima, Kaoru
Tanaka, Kiyoyasu
鍋嶋, 郁
田中, 清泰
キーワード: East Asia
South Korea
United States
Industrial technology
Technological innovations
Innovation Network
Patent Statistics
Issue Date: Apr-2011
出版者: Institute of Developing Economies, JETRO
引用: IDE Discussion Paper. No. 297. 2011.4
抄録: The growing importance of innovation in economic growth has encouraged the development of innovation capabilities in East Asia, within which China, Japan, and Korea are most important in terms of technological capabilities. Using U.S. patent data, we examine how knowledge networks have developed among these countries. We find that Japan's technological specialization saw gradual changes, but those of Korea and China changed rapidly since 1970s. By the year 2009, technology specialization has become similar across three countries in the sense that the common fields of prominent technology are electronics and semiconductors. Patent citations suggest that technology flows were largest in the electronics technology, pointing to the deepening of innovation networks in these countries. Together with our prior work, the Japanese and U.S. data produce similar conclusions about innovation networks.
URI: http://hdl.handle.net/2344/1080
Appears in Collections:04.IDE Discussion Paper
01.経済、産業(Economy and Industry)/東アジア(East Asian Studies)

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