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Innovation networks in China, Japan, and Korea : Further evidence from U.S. patent data

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  • Innovation networks in China, Japan, and Korea
  • Nabeshima, Kaoru; Tanaka, Kiyoyasu
  • Institute of Developing Economies, Japan External Trade Organization


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Title Innovation networks in China, Japan, and Korea
Similar Titles
Sub Title

Further evidence from U.S. patent data

Material Type Articles
Author(English)

Nabeshima, Kaoru; Tanaka, Kiyoyasu

Publisher

[Chiba]:Institute of Developing Economies, Japan External Trade Organization

Date 2011-04
Pages 26
Subject Country China(Asia and Pacific)
Japan(Asia and Pacific)
South Korea(Asia and Pacific)
Language English
File Type Link
Subject Industry and Technology < IT
Government and Law < Laws and Legislation
Holding IDE-JETRO

Abstract

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.