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Patent Citations, the Value of Innovations and Path-Dependency

Author

Listed:
  • Bulat Sanditov

    (CESPRI and MERIT, Bocconi University, Milano,Italy and Universiteit Maastricht.)

Abstract

This paper examines how the framework of path-dependency and technological trajectories can be applied to explain the observed distribution of patent values as it is revealed in the distribution of patent citations. A very simple model of based on generalized Polya urn processes is proposed to describe evolution of patent values. It is shown that the model fits empirical distribution of patent citations (USPTO and EPO data) surprisingly well.

Suggested Citation

  • Bulat Sanditov, 2005. "Patent Citations, the Value of Innovations and Path-Dependency," KITeS Working Papers 177, KITeS, Centre for Knowledge, Internationalization and Technology Studies, Universita' Bocconi, Milano, Italy, revised Nov 2005.
  • Handle: RePEc:cri:cespri:wp177
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    File URL: ftp://ftp.unibocconi.it/pub/RePEc/cri/papers/WP177Sanditov.pdf
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    References listed on IDEAS

    as
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    6. Stefano Breschi & Francesco Lissoni, 2004. "Knowledge networks from patent data: Methodological issues and research targets," KITeS Working Papers 150, KITeS, Centre for Knowledge, Internationalization and Technology Studies, Universita' Bocconi, Milano, Italy, revised Jan 2004.
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    Cited by:

    1. Carolina Castaldi & Bart Los, 2008. "The identification of important innovations using tail estimators," Innovation Studies Utrecht (ISU) working paper series 08-07, Utrecht University, Department of Innovation Studies, revised Feb 2008.

    More about this item

    Keywords

    Size of Innovation; Patent Citations; Path-Dependency in Technical Change;

    JEL classification:

    • O31 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Innovation and Invention: Processes and Incentives
    • O33 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes

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