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Behavioral Heterogeneity in Large Economies

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  • Gael Giraud
  • Isabelle Maret

Abstract

Grandmont\'s ([14]) notion of behavioral heterogeneity is reformulated in a non parametric set-up such that the space of budget share functions admits a ``uniform\'\' probability distribution. If the population is distributed according to this measure, the aggregate budget share function is constant with respect to changes in prices and income. This exact insensitivity of the market budget share function is known to imply uniqueness and global stability of any competitive equilibrium. Here, it is not explained by any insensitivity property at the micro-economic level, but rather by a perfect \'balancing effect\'. Eventually, it is proved that the insensitivity property holds approximately for a finite population sufficiently close to, but distinct from, the perfectly heterogenous one.

Suggested Citation

  • Gael Giraud & Isabelle Maret, 2001. "Behavioral Heterogeneity in Large Economies," Working Papers of BETA 2001-08, Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg.
    • Handle: RePEc:ulp:sbbeta:2001-08
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    References listed on IDEAS

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    Cited by:

    1. Gael Giraud & John Quah, 2002. "Heterotic Models of Aggregate Demand," Economics Papers 2002-W18, Economics Group, Nuffield College, University of Oxford.
    2. Jean-Michel Grandmont, 2017. "Behavioral Heterogeneity : Pareto Distributions of Homothetic Preference Scales and Aggregate Expenditures Income Elasticities," Working Papers 2017-11, Center for Research in Economics and Statistics.
    3. Giraud Gael & Quah John K.-H., 2003. "Homothetic or Cobb-Douglas Behavior Through Aggregation," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 3(1), pages 1-23, December.
    4. Werner Hildenbrand & Alois Kneip, 2005. "On behavioral heterogeneity," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 25(1), pages 155-169, January.

    More about this item

    Keywords

    Aggregation of demand; behavioral heterogeneity; large economy; Law of Demand; Insensitivity of market budget shares.;

    JEL classification:

    • D11 - Microeconomics - - Household Behavior - - - Consumer Economics: Theory
    • D12 - Microeconomics - - Household Behavior - - - Consumer Economics: Empirical Analysis
    • D30 - Microeconomics - - Distribution - - - General
    • D41 - Microeconomics - - Market Structure, Pricing, and Design - - - Perfect Competition
    • D50 - Microeconomics - - General Equilibrium and Disequilibrium - - - General
    • E1 - Macroeconomics and Monetary Economics - - General Aggregative Models

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