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La consommation de ressources environnementales en incertitude

Author

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  • Alain AYONG LE KAMA

    (Université de Grenoble 2, Commissariat général du Plan et EUREQua, Université de Paris 1)

Abstract

Cet article présente un modèle dans lequel un individu représentatif consomme une unique ressource environnementale, que l'on suppose renouvelable. Nous supposons, par ailleurs, qu'il existe un ensemble de phénomènes naturels aléatoires susceptibles d'affecter le stock de ressource disponible pour la consommation. Nous analysons à l'aide de ce modèle les comportements de consommation face à une incertitude sur la disponibilité d'une ressource environnementale dans le futur. Notre objectif étant de dépasser les résultats, somme toute triviaux, qui font l'essentiel de la littérature sur la décision en incertitude, et qui consistent à remarquer qu'en présence d'incertitude, l'agent adopte généralement un comportement plus prudent quant à son usage de l'environnement que dans le cas où l'incertitude n'existerait pas. Nous montrons d'une part comment la prise en compte successive des contraintes physiques, de disponibilité de la ressource et de solvabilité (ou de survie), auxquelles font face les consommateurs, modifie fondamentalement leur comportement, relativement à l'hypothèse de cycle de vie. Et, d'autre part pourquoi leur omission, ce qui est généralement le cas dans la littérature, peut amener à des conclusions erronées.

Suggested Citation

  • Alain AYONG LE KAMA, 2004. "La consommation de ressources environnementales en incertitude," Discussion Papers (REL - Recherches Economiques de Louvain) 2004031, Université catholique de Louvain, Institut de Recherches Economiques et Sociales (IRES).
  • Handle: RePEc:ctl:louvre:2004031
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    References listed on IDEAS

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    7. Alain Ayong Le Kama, 2001. "Preservation and exogenous uncertain future preferences," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 18(3), pages 745-752.
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    Cited by:

    1. Catherine Bobtcheff, 2011. "Optimal Dynamic Management of a Renewable Energy Source under Uncertainty," Annals of Economics and Statistics, GENES, issue 103-104, pages 143-172.

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    More about this item

    Keywords

    Choix intertemporels de consommation; Incertitude; Ressources renouvelables;
    All these keywords.

    JEL classification:

    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
    • D91 - Microeconomics - - Micro-Based Behavioral Economics - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making
    • Q2 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation

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