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International knowledge diffusion and home-bias effect. Do USPTO and EPO patent citations tell the same story?

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  • Emanuele Bacchiocchi

    () (University of Milan, Milano, Italy)

  • Fabio Montobbio

    () (Insubria University, Varese, and KITeS, Universita' Bocconi, Milano, Italy)

Abstract

This paper estimates the international diffusion and obsolescence of technological knowledge by technological field and country using patent citations from the U.S. Patent and Trademark Office (USPTO) and from the European Patent Office (EPO). We control for self-citations and for procedural and legal differences between patent offices in the citation procedures using equivalent patents. We show that (1) both at the EPO and USPTO domestic citations come sooner and there is a strong localization effect of patent citations at national level; (2) the US technological system is becoming less central in the international web of knowledge flows; (3) some differences across patent offices emerge in the ranking by technological fields in the speed of diffusion and decay of technological knowledge. We support the conjecture that not only technological opportunities but also absorptive capacity plays a role. Finally on the methodological side we show that at the USPTO the median citation lag is twice as large relatively to the citations at the EPO, that some bias is induced by the different institutional practices at the EPO and USPTO and that using patent families generates a selection bias towards high quality patents.

Suggested Citation

  • Emanuele Bacchiocchi & Fabio Montobbio, 2009. "International knowledge diffusion and home-bias effect. Do USPTO and EPO patent citations tell the same story?," KITeS Working Papers 015, KITeS, Centre for Knowledge, Internationalization and Technology Studies, Universita' Bocconi, Milano, Italy, revised Feb 2009.
  • Handle: RePEc:cri:cespri:kites15_wp
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    References listed on IDEAS

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    Citations

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    Cited by:

    1. Hohberger, Jan, 2016. "Diffusion of science-based inventions," Technological Forecasting and Social Change, Elsevier, vol. 104(C), pages 66-77.
    2. Dekker, Thijs & Vollebergh, Herman R.J. & de Vries, Frans P. & Withagen, Cees A., 2012. "Inciting protocols," Journal of Environmental Economics and Management, Elsevier, vol. 64(1), pages 45-67.
    3. repec:spr:scient:v:95:y:2013:i:2:d:10.1007_s11192-013-0962-3 is not listed on IDEAS
    4. Fabio Montobbio & Valerio Sterzi, 2011. "Inventing together: exploring the nature of international knowledge spillovers in Latin America," Journal of Evolutionary Economics, Springer, vol. 21(1), pages 53-89, February.
    5. Costantini, Valeria & Liberati, Paolo, 2014. "Technology transfer, institutions and development," Technological Forecasting and Social Change, Elsevier, vol. 88(C), pages 26-48.
    6. Adam B. Jaffe & Gaétan de Rassenfosse, 2017. "Patent citation data in social science research: Overview and best practices," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 68(6), pages 1360-1374, June.
    7. Fassio, Claudio & Montobbio, Fabio & Venturini, Alessandra, 2015. "How Do Native and Migrant Workers Contribute to Innovation? A Study on France, Germany and the UK," IZA Discussion Papers 9062, Institute for the Study of Labor (IZA).
    8. Huang, Can & Jacob, Jojo, 2014. "Determinants of quadic patenting: Market access, imitative threat, competition and strength of intellectual property rights," Technological Forecasting and Social Change, Elsevier, vol. 85(C), pages 4-16.
    9. Malva, Antonio Della & Hussinger, Katrin, 2012. "Corporate science in the patent system: An analysis of the semiconductor technology," Journal of Economic Behavior & Organization, Elsevier, vol. 84(1), pages 118-135.
    10. Boeing, Philipp & Mueller, Elisabeth, 2016. "Measuring patent quality in cross-country comparison," Economics Letters, Elsevier, vol. 149(C), pages 145-147.
    11. Riccardo Cappelli & Fabio Montobbio, 2016. "European Integration and Knowledge Flows across European Regions," Regional Studies, Taylor & Francis Journals, vol. 50(4), pages 709-727, April.
    12. repec:eee:respol:v:46:y:2017:i:9:p:1580-1594 is not listed on IDEAS
    13. Yvonne McNulty & Chris Brewster, 2016. "Theorizing the Meaning(s) of ‘Expatriate’: Establishing Boundary Conditions," John H Dunning Centre for International Business Discussion Papers jhd-dp2016-05, Henley Business School, Reading University.
    14. Boeing, Philipp & Mueller, Elisabeth, 2016. "Measuring patent quality and national technological capacity in cross-country comparison," ZEW Discussion Papers 16-048, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research.
    15. Davide Castellani & Mariacristina Piva & Torben Schubert & Marco Vivarelli, 2016. "R&D and Productivity in the US and the EU: Sectoral Specificities and Differences in the Crisis," John H Dunning Centre for International Business Discussion Papers jhd-dp2016-03, Henley Business School, Reading University.
    16. Franco Malerba & Maria Mancusi & Fabio Montobbio, 2013. "Innovation, international R&D spillovers and the sectoral heterogeneity of knowledge flows," Review of World Economics (Weltwirtschaftliches Archiv), Springer;Institut für Weltwirtschaft (Kiel Institute for the World Economy), vol. 149(4), pages 697-722, December.
    17. Sterzi, Valerio, 2011. "Academic patent value and knowledge transfer in the UK. Does patent ownership matter?," MPRA Paper 34955, University Library of Munich, Germany.
    18. Fassio, Claudio & Montobbio, Fabio & Venturini, Alessandra, 2015. "How Do Native and Migrant Workers Contribute to Innovation?," Department of Economics and Statistics Cognetti de Martiis LEI & BRICK - Laboratory of Economics of Innovation "Franco Momigliano", Bureau of Research in Innovation, Complexity and Knowledge, Collegio 201507, University of Turin.
    19. Costantini, Valeria & Crespi, Francesco & Martini, Chiara & Pennacchio, Luca, 2015. "Demand-pull and technology-push public support for eco-innovation: The case of the biofuels sector," Research Policy, Elsevier, vol. 44(3), pages 577-595.
    20. Montobbio, Fabio & Sterzi, Valerio, 2013. "The Globalization of Technology in Emerging Markets: A Gravity Model on the Determinants of International Patent Collaborations," World Development, Elsevier, vol. 44(C), pages 281-299.
    21. Fabio Montobbio & Valerio Sterzi, 2014. "International patenting and knowledge flows in Latin America," Chapters,in: Intellectual Property for Economic Development, chapter 9, pages 213-239 Edward Elgar Publishing.
    22. Castellani, Davide & Piva, Mariacristina & Schubert, Torben & Vivarelli, Marco, 2016. "The Productivity Impact of R&D Investment: A Comparison between the EU and the US," IZA Discussion Papers 9937, Institute for the Study of Labor (IZA).
    23. Stefano CARRAZZA & Alfio FERRARA & Silvia SALINI, 2014. "Research infrastructures in the LHC era: a scientiometric approach," Departmental Working Papers 2014-12, Department of Economics, Management and Quantitative Methods at Università degli Studi di Milano.
    24. Antonello Zanfei & Giovanni Marin, 2018. "Does Host Market Regulation Induce Cross Border Environmental Innovation?," Working Papers 1803, University of Urbino Carlo Bo, Department of Economics, Society & Politics - Scientific Committee - L. Stefanini & G. Travaglini, revised 2018.

    More about this item

    Keywords

    Knowledge flows; Spillovers; Diffusion; Patent citations; Technological Opportunities; Absorptive Capacity;

    JEL classification:

    • O30 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - General
    • 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

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