IDEAS home Printed from https://ideas.repec.org/p/tcr/wpaper/e113.html
   My bibliography  Save this paper

Technology Polarization

Author

Listed:
  • Koki Oikawa
  • Minoru Kitahara

Abstract

We construct a new method to describe firm distributions within technology fields and investigate the relationship between those distributions and aggregate innovation. To locate firms on a technology space, we apply multidimensional scaling for the inter-firm technological dissimilarity matrices that are computed from patent citation overlaps among firms using the NBER US patent dataset. Our estimated firm distributions show increasing trends in technological distance and polarization on average, where we follow Duclos, Esteban and Ray (2004) to measure polarization. We construct a model of inter-group competition in which polarization stimulates aggregate R&D. The model fits data before 1990 but the impact of polarization is reversed after that. We attribute the structural change to the major patent reform in the United States in 1980s.

Suggested Citation

  • Koki Oikawa & Minoru Kitahara, 2017. "Technology Polarization," Working Papers e113, Tokyo Center for Economic Research.
    • Handle: RePEc:tcr:wpaper:e113
    as

    Download full text from publisher

    File URL: https://www.tcer.or.jp/wp/pdf/e113.pdf
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Kortum, Samuel & Lerner, Josh, 1998. "Stronger protection or technological revolution: what is behind the recent surge in patenting?," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 48(1), pages 247-304, June.
    2. Esteban, Joan & Ray, Debraj, 1994. "On the Measurement of Polarization," Econometrica, Econometric Society, vol. 62(4), pages 819-851, July.
    3. Joan Esteban & Debraj Ray, 2011. "Linking Conflict to Inequality and Polarization," American Economic Review, American Economic Association, vol. 101(4), pages 1345-1374, June.
    4. Nicholas Bloom & Mark Schankerman & John Van Reenen, 2013. "Identifying Technology Spillovers and Product Market Rivalry," Econometrica, Econometric Society, vol. 81(4), pages 1347-1393, July.
    5. Bronwyn H. Hall, 2010. "Measuring the Returns to R&D: The Depreciation Problem," NBER Chapters, in: Contributions in Memory of Zvi Griliches, pages 341-381, National Bureau of Economic Research, Inc.
    6. Jean-Yves Duclos & Joan Esteban & Debraj Ray, 2004. "Polarization: Concepts, Measurement, Estimation," Econometrica, Econometric Society, vol. 72(6), pages 1737-1772, November.
    7. Jaffe, Adam B., 1989. "Characterizing the "technological position" of firms, with application to quantifying technological opportunity and research spillovers," Research Policy, Elsevier, vol. 18(2), pages 87-97, April.
    8. Bronwyn H. Hall & Adam B. Jaffe & Manuel Trajtenberg, 2001. "The NBER Patent Citation Data File: Lessons, Insights and Methodological Tools," NBER Working Papers 8498, National Bureau of Economic Research, Inc.
    9. Dosi, Giovanni, 1993. "Technological paradigms and technological trajectories : A suggested interpretation of the determinants and directions of technical change," Research Policy, Elsevier, vol. 22(2), pages 102-103, April.
    10. Zvi Griliches, 1958. "Research Costs and Social Returns: Hybrid Corn and Related Innovations," Journal of Political Economy, University of Chicago Press, vol. 66(5), pages 419-419.
    11. Ufuk Akcigit & Murat Alp Celik & Jeremy Greenwood, 2016. "Buy, Keep, or Sell: Economic Growth and the Market for Ideas," Econometrica, Econometric Society, vol. 84, pages 943-984, May.
    12. Lanjouw, Jean O & Schankerman, Mark, 2004. "Protecting Intellectual Property Rights: Are Small Firms Handicapped?," Journal of Law and Economics, University of Chicago Press, vol. 47(1), pages 45-74, April.
    13. Benner, Mary & Waldfogel, Joel, 2008. "Close to you? Bias and precision in patent-based measures of technological proximity," Research Policy, Elsevier, vol. 37(9), pages 1556-1567, October.
    14. Jaffe, Adam B, 1986. "Technological Opportunity and Spillovers of R&D: Evidence from Firms' Patents, Profits, and Market Value," American Economic Review, American Economic Association, vol. 76(5), pages 984-1001, December.
    15. Hall, Bronwyn H & Ziedonis, Rosemarie Ham, 2001. "The Patent Paradox Revisited: An Empirical Study of Patenting in the U.S. Semiconductor Industry, 1979-1995," RAND Journal of Economics, The RAND Corporation, vol. 32(1), pages 101-128, Spring.
    16. Bar, Talia & Leiponen, Aija, 2012. "A measure of technological distance," Economics Letters, Elsevier, vol. 116(3), pages 457-459.
    17. Lori Rosenkopf & Paul Almeida, 2003. "Overcoming Local Search Through Alliances and Mobility," Management Science, INFORMS, vol. 49(6), pages 751-766, June.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Koki Oikawa, 2017. "Inter-firm Technological Proximity and Knowledge Spillovers," Public Policy Review, Policy Research Institute, Ministry of Finance Japan, vol. 13(3), pages 305-324, November.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Figueroa, Nicolás & Serrano, Carlos J., 2019. "Patent trading flows of small and large firms," Research Policy, Elsevier, vol. 48(7), pages 1601-1616.
    2. Koki Oikawa, 2017. "Inter-firm Technological Proximity and Knowledge Spillovers," Public Policy Review, Policy Research Institute, Ministry of Finance Japan, vol. 13(3), pages 305-324, November.
    3. Katsuyuki Kaneko & Yuya Kajikawa, 2023. "Novelty Score and Technological Relatedness Measurement Using Patent Information in Mergers and Acquisitions: Case Study in the Japanese Electric Motor Industry," Global Journal of Flexible Systems Management, Springer;Global Institute of Flexible Systems Management, vol. 24(2), pages 163-177, June.
    4. Po‐Hsuan Hsu & Hai‐Ping Hui & Hsiao‐Hui Lee & Kevin Tseng, 2022. "Supply chain technology spillover, customer concentration, and product invention," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 31(2), pages 393-417, April.
    5. Mahdiyeh Entezarkheir, 2017. "Patent thickets, defensive patenting, and induced R&D: an empirical analysis of the costs and potential benefits of fragmentation in patent ownership," Empirical Economics, Springer, vol. 52(2), pages 599-634, March.
    6. Aharonson, Barak S. & Schilling, Melissa A., 2016. "Mapping the technological landscape: Measuring technology distance, technological footprints, and technology evolution," Research Policy, Elsevier, vol. 45(1), pages 81-96.
    7. Banal-Estañol, Albert & Duso, Tomaso & Seldeslachts, Jo & Szücs, Florian, 2022. "R&D spillovers through RJV cooperation," Research Policy, Elsevier, vol. 51(4).
    8. Michael Noel & Mark Schankerman, 2013. "Strategic Patenting and Software Innovation," Journal of Industrial Economics, Wiley Blackwell, vol. 61(3), pages 481-520, September.
    9. Carlos J. Serrano & Rosemarie Ziedonis, 2018. "How Redeployable are Patent Assets? Evidence from Failed Startups," NBER Working Papers 24526, National Bureau of Economic Research, Inc.
    10. Dai, Lu & Zhang, Jiajun & Luo, Shougui, 2022. "Effective R&D capital and total factor productivity: Evidence using spatial panel data models," Technological Forecasting and Social Change, Elsevier, vol. 183(C).
    11. Hall, Bronwyn H. & Mairesse, Jacques & Mohnen, Pierre, 2010. "Measuring the Returns to R&D," Handbook of the Economics of Innovation, in: Bronwyn H. Hall & Nathan Rosenberg (ed.), Handbook of the Economics of Innovation, edition 1, volume 2, chapter 0, pages 1033-1082, Elsevier.
    12. Mahdiyeh Entezarkheir & Saeed Moshiri, 2021. "Innovation spillover and merger decisions," Empirical Economics, Springer, vol. 61(5), pages 2419-2448, November.
    13. Galasso, Alberto & Schankerman, Mark, 2013. "Patents and cumulative innovation: causal evidence from the courts," LSE Research Online Documents on Economics 51539, London School of Economics and Political Science, LSE Library.
    14. Martin Kalthaus, 2020. "Knowledge recombination along the technology life cycle," Journal of Evolutionary Economics, Springer, vol. 30(3), pages 643-704, July.
    15. Aldieri, Luigi & Aprile, Maria Carmela & Vinci, Concetto Paolo, 2015. "R&D Spillovers Effects on strategic behaviour of Large International Firms," MPRA Paper 63402, University Library of Munich, Germany.
    16. Haucap, Justus & Rasch, Alexander & Stiebale, Joel, 2019. "How mergers affect innovation: Theory and evidence," International Journal of Industrial Organization, Elsevier, vol. 63(C), pages 283-325.
    17. Aldieri, Luigi & Kotsemir, Maxim & Vinci, Concetto Paolo, 2017. "Jacobian spillovers in environmental technological proximity: the role of Mahalanobis index on European patents within the Triad," MPRA Paper 77274, University Library of Munich, Germany.
    18. Katia Angue & Cécile Ayerbe & Liliana Mitkova, 2014. "A method using two dimensions of the patent classification for measuring the technological proximity: an application in identifying a potential R&D partner in biotechnology," The Journal of Technology Transfer, Springer, vol. 39(5), pages 716-747, October.
    19. Zhang, Ningning & You, Dingyi & Tang, Le & Wen, Ke, 2023. "Knowledge path dependence, external connection, and radical inventions: Evidence from Chinese Academy of Sciences," Research Policy, Elsevier, vol. 52(4).
    20. Bar, Talia & Leiponen, Aija, 2012. "A measure of technological distance," Economics Letters, Elsevier, vol. 116(3), pages 457-459.

    More about this item

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:tcr:wpaper:e113. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: the person in charge (email available below). General contact details of provider: https://edirc.repec.org/data/tctokjp.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.