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Patent Citations, the Value of Innovations and Path-Dependency

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Author Info
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.

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Publisher Info
Paper provided by CESPRI, Centre for Research on Innovation and Internationalisation, Universita' Bocconi, Milano, Italy in its series CESPRI Working Papers with number 177.

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Length: 43 pages
Date of creation: Nov 2005
Date of revision: Nov 2005
Handle: RePEc:cri:cespri:wp177

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Related research
Keywords: Size of Innovation; Patent Citations; Path-Dependency in Technical Change;

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Find related papers by JEL classification:
O31 - Economic Development, Technological Change, and Growth - - Technological Change - - - Innovation and Invention: Processes and Incentives
O33 - Economic Development, Technological Change, and Growth - - Technological Change - - - Technological Change: Choices and Consequences; Diffusion Processes

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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Samuel S. Kortum, 1997. "Research, Patenting, and Technological Change," Econometrica, Econometric Society, vol. 65(6), pages 1389-1420, November.
  2. Lanjouw, Jean O & Pakes, Ariel & Putnam, Jonathan, 1998. "How to Count Patents and Value Intellectual Property: The Uses of Patent Renewal and Application Data," Journal of Industrial Economics, Blackwell Publishing, vol. 46(4), pages 405-32, December. [Downloadable!] (restricted)
  3. Gregory D. Graff, 2003. "Observing Technological Trajectories in Patent Data: Empirical Methods to Study the Emergence and Growth of New Technologies," American Journal of Agricultural Economics, American Agricultural Economics Association, vol. 85(5), pages 1266-1274, December. [Downloadable!] (restricted)
  4. Scherer, F. M. & Harhoff, Dietmar, 2000. "Technology policy for a world of skew-distributed outcomes," Research Policy, Elsevier, vol. 29(4-5), pages 559-566, April. [Downloadable!] (restricted)
  5. Andrea Bassanini & Giovanni Dosi, 1999. "Competing Technologies, Technological Monopolies and the Rate of Convergence to a Stable Market Structure," Working Papers halshs-00185579_v1, HAL. [Downloadable!]
    Other versions:
  6. Hall, B. & Jaffe, A. & Trajtenberg, M., 2001. "The NBER Patent Citations Data File: Lessons, Insights and Methodological Tools," Papers 2001-29, Tel Aviv.
    Other versions:
  7. Ariel Pakes & Mark Schankerman, 1979. "The Rate of Obsolescence Of Knowledge, Research Gestation Lags, and the Private Rate of Return to Research Resources," NBER Working Papers 0346, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  8. Bronwyn H. Hall and Adam Jaffe, and Manuel Trajtenberg., 2001. "Market Value and Patent Citations: A First Look," Economics Working Papers E01-304, University of California at Berkeley.
    Other versions:
  9. Stefano Breschi & Francesco Lissoni, 2004. "Knowledge networks from patent data: Methodological issues and research targets," CESPRI Working Papers 150, CESPRI, Centre for Research on Innovation and Internationalisation, Universita' Bocconi, Milano, Italy, revised Jan 2004. [Downloadable!]
  10. Pakes, Ariel S, 1986. "Patents as Options: Some Estimates of the Value of Holding European Patent Stocks," Econometrica, Econometric Society, vol. 54(4), pages 755-84, July. [Downloadable!] (restricted)
  11. Manuel Trajtenberg, 1990. "A Penny for Your Quotes: Patent Citations and the Value of Innovations," RAND Journal of Economics, The RAND Corporation, vol. 21(1), pages 172-187, Spring. [Downloadable!] (restricted)
  12. Silverberg, G. & Verspagen, B., 2004. "The size distribution of innovations revisited: an application of extreme value statistics to citation and value measures of patent significance," ECIS Working Papers 04.17, Eindhoven Centre for Innovation Studies, Eindhoven University of Technology. [Downloadable!]
    Other versions:
  13. Pakes, Ariel, 1985. "On Patents, R&D, and the Stock Market Rate of Return," Journal of Political Economy, University of Chicago Press, vol. 93(2), pages 390-409, April. [Downloadable!] (restricted)
  14. Jean O. Lanjouw & Ariel Pakes & Jonathan Putnam, 1996. "How to Count Patents and Value Intellectual Property: Uses of Patent Renewal and Application Data," NBER Working Papers 5741, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  15. Griliches, Zvi, 1981. "Market value, R&D, and patents," Economics Letters, Elsevier, vol. 7(2), pages 183-187. [Downloadable!] (restricted)
    Other versions:
  16. Charles I. Jones, 2005. "The Shape of Production Functions and the Direction of Technical Change," The Quarterly Journal of Economics, MIT Press, vol. 120(2), pages 517-549, May.
    Other versions:
  17. Jaffe, Adam B & Trajtenberg, Manuel & Henderson, Rebecca, 1993. "Geographic Localization of Knowledge Spillovers as Evidenced by Patent Citations," The Quarterly Journal of Economics, MIT Press, vol. 108(3), pages 577-98, August. [Downloadable!] (restricted)
    Other versions:
  18. Bronwyn H. Hall & Manuel Trajtenberg, 2004. "Uncovering GPTS with Patent Data," NBER Working Papers 10901, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  19. A. Bassanini & G. Dosi, 1998. "Competing Technologies, International Diffusion and the Rate of Convergence to a Stable Market Structure," Working Papers ir98012, International Institute for Applied Systems Analysis. [Downloadable!]
  20. Dietmar Harhoff & Francis Narin & F. M. Scherer & Katrin Vopel, 1999. "Citation Frequency And The Value Of Patented Inventions," The Review of Economics and Statistics, MIT Press, vol. 81(3), pages 511-515, August. [Downloadable!] (restricted)
  21. Ariel Pakes & Mark Schankerman, 1984. "The Rate of Obsolescence of Patents, Research Gestation Lags, and the Private Rate of Return to Research Resources," NBER Chapters, in: R & D, Patents, and Productivity, pages 73-88 National Bureau of Economic Research, Inc. [Downloadable!]
  22. Nelson, Richard R. & Winter, Sidney G., 1977. "In search of useful theory of innovation," Research Policy, Elsevier, vol. 6(1), pages 36-76, January. [Downloadable!] (restricted)
    Other versions:
  23. Ariel Pakes, 1986. "Patents as Options: Some Estimates of the Value of Holding European Patent Stocks," NBER Working Papers 1340, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  24. Aghion, Philippe & Howitt, Peter, 1992. "A Model of Growth through Creative Destruction," Econometrica, Econometric Society, vol. 60(2), pages 323-51, March. [Downloadable!] (restricted)
    Other versions:
  25. Balconi, Margherita & Breschi, Stefano & Lissoni, Francesco, 2004. "Networks of inventors and the role of academia: an exploration of Italian patent data," Research Policy, Elsevier, vol. 33(1), pages 127-145, January. [Downloadable!] (restricted)
  26. Adam B. Jaffe & Manuel Trajtenberg & Michael S. Fogarty, 2000. "Knowledge Spillovers and Patent Citations: Evidence from a Survey of Inventors," American Economic Review, American Economic Association, vol. 90(2), pages 215-218, May. [Downloadable!] (restricted)
  27. Birchenhall, Chris, 1995. "Modular Technical Change and Genetic Algorithms," Computational Economics, Springer, vol. 8(3), pages 233-53, August.
Full references

Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  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. [Downloadable!]
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