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Price distortions and public information: theory, experiments and simulations

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  • Ruiz-Buforn, Alba
  • Alfarano, Simone
  • Camacho-Cuena, Eva

Abstract

This paper studies the effects on the asset price of the introduction of a public signal in the presence of asymmetric private information in a decentralized market. We introduce an artificial market model populated by boundedly rational agents with heterogeneous levels of reasoning: sophisticated and naive traders. The model captures the main impacts of public information analyzed in the laboratory experiments reported by Ruiz-Buforn et al. (2019). Public information, when correct, coordinates market activity, improving price convergence to the fundamentals. By contrast, unwarranted public information pushes prices away from fundamentals. This strong influence of public information on prices is primarily driven by its common knowledge property.

Suggested Citation

  • Ruiz-Buforn, Alba & Alfarano, Simone & Camacho-Cuena, Eva, 2019. "Price distortions and public information: theory, experiments and simulations," MPRA Paper 93288, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:93288
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    File URL: https://mpra.ub.uni-muenchen.de/93288/1/MPRA_paper_93288.pdf
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    References listed on IDEAS

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    More about this item

    Keywords

    Public information; asset markets; asymmetric information;
    All these keywords.

    JEL classification:

    • C90 - Mathematical and Quantitative Methods - - Design of Experiments - - - General
    • D80 - Microeconomics - - Information, Knowledge, and Uncertainty - - - General
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)

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