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La structure industrielle dans une course au brevet avec coûts fixes et coûts variables

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  • J. David
  • Thierry Verdier

Abstract

[fre] La structure industrielle dans une course au brevet avec coûts fixes et coûts variables. . Dans cet article, on étudie un modèle de course au brevet qui intègre explicitement des coûts fixes et des coûts variables dans la technologie de R&D. On obtient des résultats qui généralisent les conclusions des modèles de Loury [1979] et de Lee-Wilde [1980]. On met en évidence l'importance de la forme de la technologie de R&D sur la structure industrielle dans une course au brevet. On trouve des cas où la solution naturelle du jeu est une situation d'oligopole (ou de monopole) de R&D, et d'autres cas où un nombre élevé d'entreprises se fait de la concurrence en R&D. On caractérise aussi les configurations des paramètres où la R&D a effectivement lieu. Finalement, on présente un exercice de statique comparative sur l'équilibre de R&D. [eng] The industrial structure of a patent race with flxed costs and variable costs. . In this paper, we study a model of patent race integrating explicity fixed as well as variable costs of R&D. We find results that generalize the conclusions of Loury (1979) and Lee Wilde (1980). We emphazise the importance of the shape of the technology of R&D on the industrial structure of the patent race. We find cases where the solution of the game is a natural oligopoly of R&D (or monopoly) and other cases where there is intense competition in R&D. We characterize also the configurations of parameters where R&D occurs effectively. Finally we present some comparative static on the R&D equilibrium.

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Bibliographic Info

Article provided by Presses de Sciences-Po in its journal Revue économique.

Volume (Year): n° 42 (1991)
Issue (Month): 6 ()
Pages: 1111-1140

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Handle: RePEc:cai:recosp:reco_p1991_42n6_1111

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Web page: http://www.cairn.info/revue-economique.htm

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Cited by:
  1. Babacar Ndiaye & Cheikh Thiaw, 2011. "Positioning strategies in the case of oligopolistic competition: The case of telecommunications industry in Senegal," Post-Print halshs-00864556, HAL.

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