Pulford, Briony D. and Colman, Andrew M.
(2007):
*Ambiguous games: Evidence for strategic ambiguity aversion.*
Published in: Quarterly Journal of Experimental Psychology
, Vol. 8, No. 60
(2007): pp. 1083-1100.

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## Abstract

The problem of ambiguity in games is discussed, and a class of ambiguous games is identified. 195 participants played strategic-form games of various sizes with unidentified co-players. In each case, they first chose between a known-risk game involving a co-player indifferent between strategies and an equivalent ambiguous game involving one of several co-player types, each with a different dominant strategy, then they chose a strategy for the preferred game. Half the players knew that the ambiguous co-player types were equally likely, and half did not. Half expected the outcomes to be known immediately, and half expected a week’s delay. Known-risk games were generally preferred, confirming a significant strategic ambiguity aversion effect. In the delay conditions, players who knew that the ambiguous co-player types were equally likely were significantly less ambiguity-averse than those who did not. Decision confidence was significantly higher in 2 × 2 than larger games.

Item Type: | MPRA Paper |
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Original Title: | Ambiguous games: Evidence for strategic ambiguity aversion |

Language: | English |

Keywords: | ambiguity aversion; behavioural game theory; confidence; decision making; Ellsberg paradox; incomplete information; intolerance of uncertainty; psychological game theory; subjective expected utility. |

Subjects: | C - Mathematical and Quantitative Methods > C7 - Game Theory and Bargaining Theory C - Mathematical and Quantitative Methods > C7 - Game Theory and Bargaining Theory > C72 - Noncooperative Games C - Mathematical and Quantitative Methods > C9 - Design of Experiments > C90 - General C - Mathematical and Quantitative Methods > C9 - Design of Experiments > C92 - Laboratory, Group Behavior D - Microeconomics > D8 - Information, Knowledge, and Uncertainty > D81 - Criteria for Decision-Making under Risk and Uncertainty |

Item ID: | 86345 |

Depositing User: | Dr Briony D. Pulford |

Date Deposited: | 02 May 2018 04:07 |

Last Modified: | 27 Sep 2019 09:58 |

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URI: | https://mpra.ub.uni-muenchen.de/id/eprint/86345 |