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Dragon Slaying with Ambiguity: Theory and Experiments

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  • DAVID KELSEY
  • SARA LE ROUX

Abstract

This paper studies the impact of ambiguity in the best shot and weakest link models of public good provision. The models are ?rst analysed theoretically. Then we conduct experiments to study how ambiguity affects behaviour in these games. We test whether subjects? perception of ambiguity differs between a local opponent and a foreign one. We fi?nd that an ambiguity safe strategy, is often chosen by subjects. This is compatible with the hypothesis that ambiguity aversion infl?uences behaviour in games. Subjects tend to choose contributions above (resp. below) the Nash equilibrium in the Best Shot (resp. Weakest Link) model.
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Suggested Citation

  • David Kelsey & Sara Le Roux, 2017. "Dragon Slaying with Ambiguity: Theory and Experiments," Journal of Public Economic Theory, Association for Public Economic Theory, vol. 19(1), pages 178-197, February.
    • Handle: RePEc:bla:jpbect:v:19:y:2017:i:1:p:178-197
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    File URL: http://hdl.handle.net/10.1111/jpet.2017.19.issue-1
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    1. David Kelsey & Sara Roux, 2015. "An experimental study on the effect of ambiguity in a coordination game," Theory and Decision, Springer, vol. 79(4), pages 667-688, December.
    2. Chateauneuf, Alain & Eichberger, Jurgen & Grant, Simon, 2007. "Choice under uncertainty with the best and worst in mind: Neo-additive capacities," Journal of Economic Theory, Elsevier, vol. 137(1), pages 538-567, November.
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    5. Ralph W. Bailey & Jürgen Eichberger & David Kelsey, 2005. "Ambiguity and Public Good Provision in Large Societies," Journal of Public Economic Theory, Association for Public Economic Theory, vol. 7(5), pages 741-759, December.
    6. Carmela Di Mauro & Massimo Finocchiaro Castro, 2011. "Kindness, confusion, or … ambiguity?," Experimental Economics, Springer;Economic Science Association, vol. 14(4), pages 611-633, November.
    7. Harrison, Glenn W & Hirshleifer, Jack, 1989. "An Experimental Evaluation of Weakest Link/Best Shot Models of Public Goods," Journal of Political Economy, University of Chicago Press, vol. 97(1), pages 201-225, February.
    8. Eichberger, Jurgen & Kelsey, David, 2002. "Strategic Complements, Substitutes, and Ambiguity: The Implications for Public Goods," Journal of Economic Theory, Elsevier, vol. 106(2), pages 436-466, October.
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    More about this item

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • C91 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Individual Behavior
    • D03 - Microeconomics - - General - - - Behavioral Microeconomics: Underlying Principles
    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
    • H41 - Public Economics - - Publicly Provided Goods - - - Public Goods

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