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The geography of duplicated inventions: evidence from patent citations

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  • Stefano Baruffaldi
  • Julio Raffo

Abstract

The geography of duplicated inventions: evidence from patent citations. Regional Studies. Innovators often claim inventions that turn out to duplicate, at least in part, existing ones. This paper advances the claim that for recent and upcoming inventions, competitive incentives are high, and localized knowledge flows increase the probability of duplication. Therefore, over a brief period of time the probability of duplication is higher at short geographical distance. Conversely, the duplication of less recent inventions is more likely at long distance as a consequence of a lower awareness of the existence of a technology. This claim is supported by coherent descriptive and multivariate evidence using data on patent citation categories from the European Patent Office (EPO).

Suggested Citation

  • Stefano Baruffaldi & Julio Raffo, 2017. "The geography of duplicated inventions: evidence from patent citations," Regional Studies, Taylor & Francis Journals, vol. 51(8), pages 1232-1245, August.
  • Handle: RePEc:taf:regstd:v:51:y:2017:i:8:p:1232-1245
    DOI: 10.1080/00343404.2017.1280152
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    References listed on IDEAS

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    1. James Bessen & Michael J. Meurer, 2008. "Introduction to Patent Failure: How Judges, Bureaucrats, and Lawyers Put Innovators at Risk," Introductory Chapters, in: Patent Failure: How Judges, Bureaucrats, and Lawyers Put Innovators at Risk, Princeton University Press.
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    1. Joaquín M. Azagra-Caro & Elena M. Tur, 2018. "Examiner trust in applicants to the European Patent Office: country specificities," Scientometrics, Springer;Akadémiai Kiadó, vol. 117(3), pages 1319-1348, December.
    2. Francesco Quatraro & Stefano Usai, 2017. "Knowledge flows, externalities and innovation networks," Regional Studies, Taylor & Francis Journals, vol. 51(8), pages 1133-1137, August.
    3. Michaël Bikard, 2020. "Idea twins: Simultaneous discoveries as a research tool," Strategic Management Journal, Wiley Blackwell, vol. 41(8), pages 1528-1543, August.
    4. Stéphane Lhuillery & Julio Raffo & Intan Hamdan-Livramento, 2016. "Measuring creativity: Learning from innovation measurement," WIPO Economic Research Working Papers 31, World Intellectual Property Organization - Economics and Statistics Division.
    5. Baruffaldi, Stefano H. & Simeth, Markus, 2020. "Patents and knowledge diffusion: The effect of early disclosure," Research Policy, Elsevier, vol. 49(4).

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