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Granny versus Game Theorst: Ambiguity in Experimental Games

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  • Eichberger, Jürgen
  • Kelsey, David H.
  • Schipper, Burkhard C.

Abstract

We report on an experiment in which subjects choose actions in strategic games with either strategic complements or substitutes against a granny, a game theorist or other subjects. The games are selected in order to test predictions on the comparative statics of equilibrium with respect to changes in strategic ambiguity. We find that subjects face higher ambiguity while playing against the granny than playing against the game theorist if we assume that subjects are ambiguity averse. Moreover, under the same assumption, subjects choose more secure actions in games more prone to ambiguity which is in line with the predictions.

Suggested Citation

  • Eichberger, Jürgen & Kelsey, David H. & Schipper, Burkhard C., 2006. "Granny versus Game Theorst: Ambiguity in Experimental Games," Bonn Econ Discussion Papers 17/2006, University of Bonn, Bonn Graduate School of Economics (BGSE).
    • Handle: RePEc:zbw:bonedp:172006
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    References listed on IDEAS

    as
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    More about this item

    Keywords

    Knightian uncertainty; Choquet expected utility; equilibrium under ambiguity; strategic uncertainty; experiments;
    All these keywords.

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
    • D80 - Microeconomics - - Information, Knowledge, and Uncertainty - - - General
    • C91 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Individual Behavior
    • C70 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - General
    • C90 - Mathematical and Quantitative Methods - - Design of Experiments - - - General

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