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Déterminants de l’innovation dans les technologies énergétiques efficientes et renouvelables

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  • Gilles Koléda
  • Hugo Pillu

Abstract

[eng] We estimate the two main drivers of technological innovation in the energy sector : demand mechanisms and supply mechanisms. We study eleven efficient and renewable energy technologies in four countries : Germany, France, Japan, and the United States. Innovation activity is proxied by patent applications. Demand mechanisms, which represent market demand for new technologies, are proxied by energy prices. Supply mechanisms, which represent technological opportunities, are identified by stocks of domestic and foreign knowledge. The results show that high energy prices induce innovation. However, the mechanism is not automatic and gives way to public policies aimed at fostering innovation, since we also find a strong response of innovation to technological opportunities. [fre] Cette contribution estime les deux principaux moteurs de l’innovation technologique dans le domaine de l’énergie : les mécanismes de demande et les mécanismes d’offre. Nous étudions 11 technologies énergétiques efficientes et renouvelables dans 4 pays (Allemagne, France, Japon et États-Unis). L’activité innovante est approximée par les dépôts de brevet. Les mécanismes de demande, représentant la demande du marché pour les nouvelles technologies, sont approchés par les prix de l’énergie. Les mécanismes d’offre, représentant les opportunités technologiques, sont identifiés par les stocks de connaissances domestiques et étrangers. Les résultats montrent que des prix élevés de l’énergie induisent l’innovation. Toutefois, le mécanisme n’est pas automatique et laisse la place à des politiques publiques visant à promouvoir l’innovation , puisque nous trouvons également une forte réponse de l’innovation aux opportunités technologiques.

Suggested Citation

  • Gilles Koléda & Hugo Pillu, 2011. "Déterminants de l’innovation dans les technologies énergétiques efficientes et renouvelables," Économie et Prévision, Programme National Persée, vol. 197(1), pages 105-128.
  • Handle: RePEc:prs:ecoprv:ecop_0249-4744_2011_num_197_1_8081
    DOI: 10.3406/ecop.2011.8081
    Note: DOI:10.3406/ecop.2011.8081
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