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Noisy Learning in a Competitive Market with Risk Aversion

Author

Listed:
  • Leonard J. Mirman
  • Egas M. Salgueiro
  • Marc Santugini

Abstract

We address the issue of risk aversion in a competitive equilibrium when some buyers engage in learning and information is conveyed through the price system. Specifically, since the learning process yields uncertainty, we study the effect of risk aversion on the equilibrium outcomes of the model, including the amount of information released by the market. We show that risk aversion has an effect on the market outcomes but not on the flow of information. In particular, an increase in risk aversion lowers the competitive price and quantity. However, an increase in risk aversion does not change the amount of information embedded in the equilibrium price.

Suggested Citation

  • Leonard J. Mirman & Egas M. Salgueiro & Marc Santugini, 2015. "Noisy Learning in a Competitive Market with Risk Aversion," Cahiers de recherche 1502, CIRPEE.
    • Handle: RePEc:lvl:lacicr:1502
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    References listed on IDEAS

    as
    1. Grossman, Sanford, 1978. "Further results on the informational efficiency of competitive stock markets," Journal of Economic Theory, Elsevier, vol. 18(1), pages 81-101, June.
    2. Sanford Grossman, 1989. "The Informational Role of Prices," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262572141, December.
    3. Kyle, Albert S, 1985. "Continuous Auctions and Insider Trading," Econometrica, Econometric Society, vol. 53(6), pages 1315-1335, November.
    4. Grossman, Sanford J & Stiglitz, Joseph E, 1980. "On the Impossibility of Informationally Efficient Markets," American Economic Review, American Economic Association, vol. 70(3), pages 393-408, June.
    5. Diamond, Douglas W. & Verrecchia, Robert E., 1981. "Information aggregation in a noisy rational expectations economy," Journal of Financial Economics, Elsevier, vol. 9(3), pages 221-235, September.
    6. Leonard J. Mirman & Egas M. Salgueiro & Marc Santugini, 2014. "Learning in a Perfectly Competitive Market," Cahiers de recherche 1423, CIRPEE.
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    Cited by:

    1. Leonard J. Mirman & Marc Santugini, 2019. "The Informational Role of Prices," Scandinavian Journal of Economics, Wiley Blackwell, vol. 121(2), pages 606-629, April.

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    More about this item

    Keywords

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    JEL classification:

    • D21 - Microeconomics - - Production and Organizations - - - Firm Behavior: Theory
    • D42 - Microeconomics - - Market Structure, Pricing, and Design - - - Monopoly
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations
    • L12 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Monopoly; Monopolization Strategies
    • L15 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Information and Product Quality

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