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Patent Productivity of German Professors over the Life Cycle

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  • Sidonia von Ledebur

    () (Department of Geography, Philipps University Marburg)

Abstract

The paper studies the patent productivity of scientists over their life cycle. The incentives for patenting and for publishing are compared and how they shape life cycle productivity. In most empirical studies, publication productivity decreases at the end of the scientific career. In contrast, the analytical model given here suggests an increase of patent productivity over the life time. In the empirical part the patents of nearly 1000 German patent active professors are analyzed. The empirical findings support the theoretical prediction that patent productivity does not decline for older scientists.

Suggested Citation

  • Sidonia von Ledebur, 2009. "Patent Productivity of German Professors over the Life Cycle," Working Papers on Innovation and Space 2009-03, Philipps University Marburg, Department of Geography.
  • Handle: RePEc:pum:wpaper:2009-03
    as

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    References listed on IDEAS

    as
    1. Lazear, Edward P, 1981. "Agency, Earnings Profiles, Productivity, and Hours Restrictions," American Economic Review, American Economic Association, vol. 71(4), pages 606-620, September.
    2. Levin, Sharon G & Stephan, Paula E, 1991. "Research Productivity over the Life Cycle: Evidence for Academic Scientists," American Economic Review, American Economic Association, vol. 81(1), pages 114-132, March.
    3. Bronwyn Hall & Jacques Mairesse & Laure Turner, 2007. "Identifying Age, Cohort, And Period Effects In Scientific Research Productivity: Discussion And Illustration Using Simulated And Actual Data On French Physicists," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 16(2), pages 159-177.
    4. Stephan, Paula E., 2010. "The Economics of Science," Handbook of the Economics of Innovation, Elsevier.
    5. Sidonia von Ledebur, 2009. "University-owned Patents in West and East Germany and the Abolition of the Professors' Privilege," Working Papers on Innovation and Space 2009-02, Philipps University Marburg, Department of Geography.
    6. Dietz, James S. & Bozeman, Barry, 2005. "Academic careers, patents, and productivity: industry experience as scientific and technical human capital," Research Policy, Elsevier, vol. 34(3), pages 349-367, April.
    7. Pierre Azoulay & Waverly Ding & Toby Stuart, 2005. "The Determinants of Faculty Patenting Behavior: Demographics or Opportunities?," NBER Working Papers 11348, National Bureau of Economic Research, Inc.
    8. Laurence J. Kotlikoff, 1988. "Estimating The Age-Productivity Profile Using Lifetime Earnings," NBER Working Papers 2788, National Bureau of Economic Research, Inc.
    9. Cristiano Antonelli, 2008. "The new economics of the university: a knowledge governance approach," The Journal of Technology Transfer, Springer, vol. 33(1), pages 1-22, February.
    Full references (including those not matched with items on IDEAS)

    More about this item

    Keywords

    : university patenting; patent productivity; scientific productivity; age and productivity; Germany;

    JEL classification:

    • 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
    • J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity

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