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

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  • Nabeshima, Kaoru
  • Tanaka, Kiyoyasu

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.

Suggested Citation

  • Nabeshima, Kaoru & Tanaka, Kiyoyasu, 2011. "Innovation networks in China, Japan, and Korea : further evidence from U.S. patent data," IDE Discussion Papers 297, Institute of Developing Economies, Japan External Trade Organization(JETRO).
  • Handle: RePEc:jet:dpaper:dpaper297
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    References listed on IDEAS

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    Cited by:

    1. Freeman, Richard B., 2015. "Knowledge, Knowledge… Knowledge for My Economy," KDI Journal of Economic Policy, Korea Development Institute (KDI), vol. 37(2), pages 1-21.

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    More about this item

    Keywords

    East Asia; China; South Korea; Japan; United States; Industrial technology; Technological innovations; Patents; Electronics; Innovation Network; Patent Statistics; Korea;
    All these keywords.

    JEL classification:

    • O31 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Innovation and Invention: Processes and Incentives
    • O33 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes
    • L6 - Industrial Organization - - Industry Studies: Manufacturing

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