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Diffusion de la connaissance. Étude d'un modèle de croissance schumpetérien et applications

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  • Elie Gray
  • André Grimaud

Abstract

This paper proposes a Schumpeterian growth model generalizing the existing theory: we exploit the Salop (1979) formalization of circular product differentiation to take into account the fact that knowledge can diffuse variously among R&D sectors, ranging from local to global diffusion. We explain how this shapes the pools of knowledge in which sectors draw from to produce innovations. Introducing explicitly knowledge diffusion allows us to shed a new light on several questions: how to explain that growth can be over or sub-optimal? Patent or secrecy: how should monopolies be protected? Where does the property of scale effects come from? Classification JEL : O31, O33, O41

Suggested Citation

  • Elie Gray & André Grimaud, 2011. "Diffusion de la connaissance. Étude d'un modèle de croissance schumpetérien et applications," Revue économique, Presses de Sciences-Po, vol. 62(3), pages 579-588.
    • Handle: RePEc:cai:recosp:reco_623_0579
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    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
    • O41 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - One, Two, and Multisector Growth Models

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