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Politiques pro-biocarburants et climatique américaines : impact sur les choix énergétiques du Brésil et des Etats-Unis et bilan carbone

Author

Listed:
  • Ujjayant Chakravorty

    (TSE-R - Toulouse School of Economics - UT Capitole - Université Toulouse Capitole - UT - Université de Toulouse - INRA - Institut National de la Recherche Agronomique - EHESS - École des hautes études en sciences sociales - CNRS - Centre National de la Recherche Scientifique, University of Alberta)

  • Marie-Hélène Hubert

    (CREM - Centre de recherche en économie et management - UNICAEN - Université de Caen Normandie - NU - Normandie Université - UR - Université de Rennes - CNRS - Centre National de la Recherche Scientifique)

  • Michel Moreaux

    (TSE-R - Toulouse School of Economics - UT Capitole - Université Toulouse Capitole - UT - Université de Toulouse - INRA - Institut National de la Recherche Agronomique - EHESS - École des hautes études en sciences sociales - CNRS - Centre National de la Recherche Scientifique)

Abstract

Nous analysons l'impact de deux politiques américaines sur la production et les échanges d'éthanol (biocarburants de première génération) et d'éthanol ligno-cellulosique (biocarburant de seconde génération) aux Etats-Unis et au Brésil ainsi que sur les émissions directes et indirectes de carbone. La première politique est une politique dite «pro-biocarburants» qui impose un usage minimal de biocarburants. La deuxième est la politique climatique de réduction des émissions de gaz à effet de serre. Notre étude montre que la première politique encourage la production massive d'éthanol ligno-cellulosique, la diminution des émissions directes de carbone étant marginale. La deuxième politique accroît le prix des carburants et en décourage la demande. Elle a un effet significatif sur le taux de déforestation au Brésil et augmente de ce fait les émissions indirectes de carbone. La subvention nécessaire à l'implémentation de la politique «pro-biocarburants» devrait être de l'ordre 1.1 US $ par gallon. Enfin, la taxe sur le carbone dans le secteur des transports aux Etats-Unis devrait être égale à 120 US $ par tonne équivalent carbone.

Suggested Citation

  • Ujjayant Chakravorty & Marie-Hélène Hubert & Michel Moreaux, 2010. "Politiques pro-biocarburants et climatique américaines : impact sur les choix énergétiques du Brésil et des Etats-Unis et bilan carbone," Post-Print halshs-01117737, HAL.
  • Handle: RePEc:hal:journl:halshs-01117737
    DOI: 10.3917/reco.611.0213
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    References listed on IDEAS

    as
    1. Chakravorty, Ujjayant & Magné, Bertrand & Moreaux, Michel, 2008. "A dynamic model of food and clean energy," Journal of Economic Dynamics and Control, Elsevier, vol. 32(4), pages 1181-1203, April.
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    More about this item

    Keywords

    Politique pro-biocarburants; politique climatique; subvention aux Biocarburants; usages du sol; taxe sur le carbone;
    All these keywords.

    JEL classification:

    • Q24 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - Land
    • Q41 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Demand and Supply; Prices
    • Q42 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Alternative Energy Sources
    • Q48 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Government Policy

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