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Optimal research and development expenditure: a general equilibrium approach

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  • Galo Nuño

    (Banco de España)

Abstract

How much should be spent in research and development (R&D)? How should R&D vary over the business cycle? In this paper we answer both questions in the context of a calibrated dynamic general equilibrium model with Schumpeterian endogenous growth. Firstly, we demonstrate that, although the existence of distortions in a decentralized economy produces underinvestment in R&D, a simple proportional subsidy to R&D spending alone cannot restore the first best allocation. The optimal proportional R&D subsidy attains a second best allocation in which R&D spending exceeds its first best level. Secondly, we show how the observed procyclicality of R&D is socially inefficient. However, the welfare loss due to this dynamic inefficiency is much smaller than the loss due to underinvestment in R&D.

Suggested Citation

  • Galo Nuño, 2010. "Optimal research and development expenditure: a general equilibrium approach," Working Papers 1009, Banco de España.
    • Handle: RePEc:bde:wpaper:1009
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    File URL: http://www.bde.es/f/webbde/SES/Secciones/Publicaciones/PublicacionesSeriadas/DocumentosTrabajo/10/Fic/dt1009e.pdf
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    More about this item

    Keywords

    Schumpeterian growth; technology adoption; optimal subsidy;
    All these keywords.

    JEL classification:

    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • O38 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Government Policy
    • O40 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - General

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