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Per-Unit Royalty vs Fixed Fee: The Case of Weak Patents

Author

Listed:
  • Rabah Amir

    () (University of Arizona)

  • David Encaoua

    () (CES - Centre d'économie de la Sorbonne - CNRS - Centre National de la Recherche Scientifique - UP1 - Université Panthéon-Sorbonne, PSE - Paris School of Economics)

  • Yassine Lefouili

    () (GREMAQ - Groupe de recherche en économie mathématique et quantitative - UT1 - Université Toulouse 1 Capitole - INRA - Institut National de la Recherche Agronomique - EHESS - École des hautes études en sciences sociales - CNRS - Centre National de la Recherche Scientifique)

Abstract

This paper explores a licensor's choice between charging a per-unit royalty or a fixed fee when her innovation is covered by a weak patent, i.e. a patent that is likely to be invali- dated by a court if challenged. Using a general model where the nature of competition is not speci ed, we show that the patent holder prefers to use a per-unit royalty scheme if the strategic e¤ect of an increase in a potential licensee's unit cost on the aggregate equi- librium pro t is positive. To show the mildness of the latter condition, we establish that it holds in a Cournot (resp. Bertrand) oligopoly with homegenous (resp. heterogenous) products under very general assumptions on the demands faced by rms. As a byproduct of our analysis, we contribute to the oligopoly literature by o¤ering some new insights of independent interest regarding the e¤ects of cost variations on Cournot and Bertrand equilibria.

Suggested Citation

  • Rabah Amir & David Encaoua & Yassine Lefouili, 2011. "Per-Unit Royalty vs Fixed Fee: The Case of Weak Patents," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00595493, HAL.
  • Handle: RePEc:hal:cesptp:halshs-00595493
    Note: View the original document on HAL open archive server: https://halshs.archives-ouvertes.fr/halshs-00595493
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    References listed on IDEAS

    as
    1. Inés Macho-Stadler & David Perez-Castrillo, 1991. "Contrats de licences et asymétrie d'information," Annals of Economics and Statistics, GENES, issue 24, pages 189-208.
    2. Fevrier, Philippe & Linnemer, Laurent, 2004. "Idiosyncratic shocks in an asymmetric Cournot oligopoly," International Journal of Industrial Organization, Elsevier, vol. 22(6), pages 835-848, June.
    3. Macho-Stadler, Ines & Martinez-Giralt, Xavier & David Perez-Castrillo, J., 1996. "The role of information in licensing contract design," Research Policy, Elsevier, vol. 25(1), pages 43-57, January.
    4. repec:adr:anecst:y:1991:i:24:p:08 is not listed on IDEAS
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    More about this item

    Keywords

    Keywords: Licensing Schemes; Weak Patents; Patent Litigation.; JEL Classi cation: D45; L10; O32; O34.;

    JEL classification:

    • D45 - Microeconomics - - Market Structure, Pricing, and Design - - - Rationing; Licensing
    • L10 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - General
    • O32 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Management of Technological Innovation and R&D

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