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General Equilibrium With Uncertainty Loving Preferences

Author

Listed:
  • Aloisio Araujo

    (FGV - Fundacao Getulio Vargas [Rio de Janeiro])

  • Alain Chateauneuf

    (IPAG Business School, 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)

  • Juan Pablo Gama

    (IMPA - Instituto Nacional de Matemática Pura e Aplicada)

  • Rodrigo Novinski

    (Faculdades Ibmec - Faculdades Ibmec)

Abstract

More and more economists are finding both empirical and experimental evidence of economic behavior that is well beyond classical economics. In particular, empirical evidence ( Jullien and Salanié (2000)) and experimental evidence ( Kahneman and Tversky (1979)) supported the importance of risk loving, ambiguity loving, and related behavior in economics. However, these types of preferences have not been analyzed in the general equilibrium literature with a finite number of agents because non-convexity of preferences creates difficulty in proving existence of equilibrium. The main result in this paper provides a set of conditions under which equilibrium exists in such economies. We show that uncertainty of aggregate wealth, as well as some dominance of the endowment of the risk averters in the economy, play a role in the existence of Arrow–Debreu equilibria. This result can be extended to ambiguity in the sense of CEU, Smooth Ambiguity, and Variational Preference.

Suggested Citation

  • Aloisio Araujo & Alain Chateauneuf & Juan Pablo Gama & Rodrigo Novinski, 2018. "General Equilibrium With Uncertainty Loving Preferences," PSE-Ecole d'économie de Paris (Postprint) hal-03252360, HAL.
    • Handle: RePEc:hal:pseptp:hal-03252360
    DOI: 10.3982/ECTA14777
    Note: View the original document on HAL open archive server: https://hal.science/hal-03252360
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    References listed on IDEAS

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    Cited by:

    1. Cuong Le Van & Ngoc-Sang Pham, 2021. "Equilibrium with non-convex preferences: some examples," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-03177843, HAL.
    2. Geng, Runjie & Kubler, Felix, 2023. "Stochastic overlapping generations with non-convex budget sets," Journal of Mathematical Economics, Elsevier, vol. 107(C).
    3. Herings, P.J.J. & Zhan, Yang, 2022. "Competitive Equilibria in Incomplete Markets with Risk Loving Preferences," Discussion Paper 2022-026, Tilburg University, Center for Economic Research.
    4. Araujo, A. & Gama, J. & Suarez, C.E., 2022. "Lack of prevalence of the endowment effect: An equilibrium analysis," Journal of Mathematical Economics, Elsevier, vol. 102(C).

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