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Measuring agents' reaction to private and public information in games with strategic complementarities

Author

Listed:
  • Camille Cornand

    (GATE Lyon Saint-Étienne - Groupe d'Analyse et de Théorie Economique Lyon - Saint-Etienne - ENS de Lyon - École normale supérieure de Lyon - UL2 - Université Lumière - Lyon 2 - UCBL - Université Claude Bernard Lyon 1 - Université de Lyon - UJM - Université Jean Monnet - Saint-Étienne - CNRS - Centre National de la Recherche Scientifique)

  • Frank Heinemann

    (Fachgebiet Makroökonomik - TUB - Technical University of Berlin / Technische Universität Berlin)

Abstract
In games with strategic complementarities, public information about the state of the world has a larger impact on equilibrium actions than private information of the same precision, because public signals are more informative about the likely behavior of others. We present an experiment in which agents' optimal actions are a weighted average of the fundamental state and their expectations of other agents' actions. We measure the responses to public and private signals. We find that, on average, subjects put a larger weight on the public signal. In line with theoretical predictions, as the relative weight of the coordination component in a player's utility increases, players put more weight on the public signal when making their choices. However, the weight is smaller than in equilibrium, which indicates that subjects underestimate the information contained in public signals about other players' beliefs.

Suggested Citation

  • Camille Cornand & Frank Heinemann, 2014. "Measuring agents' reaction to private and public information in games with strategic complementarities," Post-Print halshs-00811951, HAL.
    • Handle: RePEc:hal:journl:halshs-00811951
    DOI: 10.1007/s10683-013-9357-9
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    References listed on IDEAS

    as
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    More about this item

    Keywords

    coordination games; strategic uncertainty; private information; public information; higher-order beliefs; levels of reasoning;
    All these keywords.

    JEL classification:

    • C92 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Group Behavior
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations

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