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Knowledge spillovers and patent citations: trends in geographic localization, 1976-2015

Author

Listed:
  • Hyuk-Soo Kwon

    (Institute for Fiscal Studies)

  • Jihong Lee

    (Institute for Fiscal Studies)

  • Sokbae (Simon) Lee

    () (Institute for Fiscal Studies and Columbia University and IFS)

  • Ryungha Oh

    (Institute for Fiscal Studies)

Abstract

This paper examines the trends in geographic localization of knowledge spillovers via patent citations, considering US patents from the period of 1976-2015. Despite accelerating globalization and widespread perception of the "death of distance," our multi-cohort "matched-sample" study reveals signi cant and growing localization effects of knowledge spillovers at both intra- and international levels after the 1980s. We also develop a novel network index based on the notion of "farness," which an instrumental variable estimation shows to be a signifi cant and sizable determinant of the observed trends at the state-sector level.

Suggested Citation

  • Hyuk-Soo Kwon & Jihong Lee & Sokbae (Simon) Lee & Ryungha Oh, 2017. "Knowledge spillovers and patent citations: trends in geographic localization, 1976-2015," CeMMAP working papers CWP55/17, Centre for Microdata Methods and Practice, Institute for Fiscal Studies.
  • Handle: RePEc:ifs:cemmap:55/17
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    File URL: https://www.ifs.org.uk/uploads/CWP551717.pdf
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    References listed on IDEAS

    as
    1. Kim, E. Han & Morse, Adair & Zingales, Luigi, 2009. "Are elite universities losing their competitive edge?," Journal of Financial Economics, Elsevier, vol. 93(3), pages 353-381, September.
    2. William R. Kerr & Scott Duke Kominers, 2015. "Agglomerative Forces and Cluster Shapes," The Review of Economics and Statistics, MIT Press, vol. 97(4), pages 877-899, October.
    3. Bloom, Nicholas & Jones, Charles I & Reenen, John Van & Webb, Michael, 2017. "Are ideas getting harder to find?," LSE Research Online Documents on Economics 86588, London School of Economics and Political Science, LSE Library.
    4. Manuel Trajtenberg, 1990. "A Penny for Your Quotes: Patent Citations and the Value of Innovations," RAND Journal of Economics, The RAND Corporation, vol. 21(1), pages 172-187, Spring.
    5. Yasusada Murata & Ryo Nakajima & Ryosuke Okamoto & Ryuichi Tamura, 2014. "Localized Knowledge Spillovers and Patent Citations: A Distance-Based Approach," The Review of Economics and Statistics, MIT Press, vol. 96(5), pages 967-985, December.
    6. Sergey Lychagin & Joris Pinkse & Margaret E. Slade & John Van Reenen, 2016. "Spillovers in Space: Does Geography Matter?," Journal of Industrial Economics, Wiley Blackwell, vol. 64(2), pages 295-335, June.
    Full references (including those not matched with items on IDEAS)

    More about this item

    Keywords

    Innovation; knowledge spillovers; patent citation; agglomeration; network index; farness;

    JEL classification:

    • C36 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Instrumental Variables (IV) Estimation
    • C81 - Mathematical and Quantitative Methods - - Data Collection and Data Estimation Methodology; Computer Programs - - - Methodology for Collecting, Estimating, and Organizing Microeconomic Data; Data Access
    • O33 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes
    • O34 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Intellectual Property and Intellectual Capital
    • O51 - Economic Development, Innovation, Technological Change, and Growth - - Economywide Country Studies - - - U.S.; Canada

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