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Knowledge diffusion from university and public research. A comparison between US, Japan and Europe using patent citations

Author

Listed:
  • Emanuele Bacchiocchi

    (University of Milan, Italy.)

  • Fabio Montobbio

    (University of Insubria, Varese and CESPRI - Bocconi University, Milan, Italy.)

Abstract

This paper estimates the process of diffusion and decay of knowledge from university, public laboratories and corporate patents in six countries and tests the differences across countries and across technological fields using data from the European Patent Office. It finds that university and public research patents are more cited relatively to companies’ patents. However these results are mainly driven by the Chemical, and Drugs & Medical fields and US universities. In Europe and Japan, where the great majority of patents from public reserach comes from national agencies, there is no evidence of a superior fertility of university and public laboratories patents vis `a vis corporate patents. The distribution of the citations lags shows that knowledge embedded in university and public research patents tends to diffuse more rapidly relatively to corporate ones in particular in US, Germany, France and Japan.

Suggested Citation

  • Emanuele Bacchiocchi & Fabio Montobbio, 2006. "Knowledge diffusion from university and public research. A comparison between US, Japan and Europe using patent citations," KITeS Working Papers 193, KITeS, Centre for Knowledge, Internationalization and Technology Studies, Universita' Bocconi, Milano, Italy, revised Dec 2006.
  • Handle: RePEc:cri:cespri:wp193
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    More about this item

    Keywords

    University patents; Citations; Spillovers; Knowledge Diffusion; Public Research.;
    All these keywords.

    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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