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Regular economies with ambiguity aversion

Author

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  • Noé Biheng

    (CES - Centre d'économie de la Sorbonne - UP1 - Université Paris 1 Panthéon-Sorbonne - CNRS - Centre National de la Recherche Scientifique, PSE - Paris School of Economics - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École des Ponts ParisTech - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement)

  • Jean-Marc Bonnisseau

    (PSE - Paris School of Economics - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École des Ponts ParisTech - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, CES - Centre d'économie de la Sorbonne - UP1 - Université Paris 1 Panthéon-Sorbonne - CNRS - Centre National de la Recherche Scientifique)

Abstract

We consider a family of exchange economies with complete markets where consumers have multiprior preferences representing their ambiguity aversion. Under a linear independence assumption, we prove that regular economies are generic. Regular economies exhibit enjoyable properties: odd finite number of equilibrium prices, local constancy of this number, local differentiable selections of the equilibrium prices. Thus, even if ambiguity aversion is represented by non-differentiable multiprior preferences, economies retain generically the properties of the differentiable approach.

Suggested Citation

  • Noé Biheng & Jean-Marc Bonnisseau, 2015. "Regular economies with ambiguity aversion," PSE-Ecole d'économie de Paris (Postprint) halshs-01185486, HAL.
    • Handle: RePEc:hal:pseptp:halshs-01185486
    DOI: 10.1016/j.jmateco.2015.04.004
    Note: View the original document on HAL open archive server: https://shs.hal.science/halshs-01185486
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    Cited by:

    1. Noé Biheng, 2016. "A Generalization of the Expenditure Function," Journal of Optimization Theory and Applications, Springer, vol. 168(2), pages 661-676, February.
    2. Noé Biheng, 2014. "A generalization of the expenditure function," Post-Print halshs-01143222, HAL.
    3. Michael Zierhut, 2021. "Generic regularity of differentiated product oligopolies," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 71(1), pages 341-374, February.

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    More about this item

    Keywords

    demand function; general equilibrium; ambiguity aver-sion; multiprior preferences; regular economies; Lipschitz behavior;
    All these keywords.

    JEL classification:

    • C6 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling
    • D4 - Microeconomics - - Market Structure, Pricing, and Design
    • D5 - Microeconomics - - General Equilibrium and Disequilibrium

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