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Demand and equilibrium with inferior and Giffen behaviors

Author

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  • Cuong Le Van

    (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, Academy of Policy and Development - Partenaires INRAE, TIMAS - Institute of Mathematics and Applied Science, Konan University [Kobe, Japan])

  • Ngoc-Sang Pham

    (Groupe Sup de Co Montpellier (GSCM) - Montpellier Business School)

Abstract

We introduce a class of differentiable, strictly increasing, concave utility functions exhibiting an explicit demand of a good which may have Giffen behavior. We provide a necessary and sufficient condition (based on prices and consumers' preferences and income) under which this good is normal, inferior or Giffen. A general equilibrium analysis is also provided.

Suggested Citation

  • Cuong Le Van & Ngoc-Sang Pham, 2020. "Demand and equilibrium with inferior and Giffen behaviors," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) hal-03261235, HAL.
    • Handle: RePEc:hal:cesptp:hal-03261235
    DOI: 10.1016/j.mathsocsci.2019.11.005
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    References listed on IDEAS

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    1. Mas-Colell, Andreu & Whinston, Michael D. & Green, Jerry R., 1995. "Microeconomic Theory," OUP Catalogue, Oxford University Press, number 9780195102680.
    2. John H. Nachbar, 1998. "The last word on Giffen goods?," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 11(2), pages 403-412.
    3. Robert T. Jensen & Nolan H. Miller, 2008. "Giffen Behavior and Subsistence Consumption," American Economic Review, American Economic Association, vol. 98(4), pages 1553-1577, September.
    4. Junko Doi & Kazumichi Iwasa & Koji Shimomura, 2012. "Giffen Behavior Independent of the Wealth Level," Lecture Notes in Economics and Mathematical Systems, in: Wim Heijman & Pierre Mouche (ed.), New Insights into the Theory of Giffen Goods, pages 105-126, Springer.
    5. Biederman, Daniel K., 2015. "A strictly-concave, non-spliced, Giffen-compatible utility function," Economics Letters, Elsevier, vol. 131(C), pages 24-28.
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    Cited by:

    1. Kim, Daehwan & Nilsen, Jeffrey, 2021. "Testing the presence of borrowing constraints from consumption responses to housing deposit changes," Journal of Asian Economics, Elsevier, vol. 74(C).

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    More about this item

    Keywords

    Inferior good; Giffen good; Equilibrium price;
    All these keywords.

    JEL classification:

    • D11 - Microeconomics - - Household Behavior - - - Consumer Economics: Theory
    • D51 - Microeconomics - - General Equilibrium and Disequilibrium - - - Exchange and Production Economies

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