What Drives People's Choices in Turn-Taking Games, if not Game-Theoretic Rationality?

Sujata Ghosh, Aviad Heifetz, Rineke Verbrugge, Harmen de Weerd

OnderzoeksoutputAcademicpeer review

4 Citaten (Scopus)
219 Downloads (Pure)


In an earlier experiment, participants played a perfect information game against a computer, which was programmed to deviate often from its backward induction strategy right at the beginning of the game. Participants knew that in each game, the computer was nevertheless optimizing against some belief about the participant's future strategy. In the aggregate, it appeared that participants applied forward induction. However, cardinal effects seemed to play a role as well: a number of participants might have been trying to maximize expected utility. In order to find out how people really reason in such a game, we designed centipede-like turn-taking games with new payoff structures in order to make such cardinal effects less likely. We ran a new experiment with 50 participants, based on marble drop visualizations of these revised payoff structures. After participants played 48 test games, we asked a number of questions to gauge the participants' reasoning about their own and the opponent's strategy at all decision nodes of a sample game. We also checked how the verbalized strategies fit to the actual choices they made at all their decision points in the 48 test games. Even though in the aggregate, participants in the new experiment still tend to slightly favor the forward induction choice at their first decision node, their verbalized strategies most often depend on their own attitudes towards risk and those they assign to the computer opponent, sometimes in addition to considerations about cooperativeness and competitiveness.
Originele taal-2English
TitelProceedings 16th Conference on Theoretical Aspects of Rationality and Knowledge (TARK 2017), Liverpool, U.K.
RedacteurenJ. Lang
UitgeverijOpen Publishing Association
Aantal pagina's20
StatusPublished - 27-jul-2017
Evenement16th Conference on Theoretical Aspects of Rationality and Knowledge (TARK 2017) - Liverpool, United Kingdom
Duur: 24-jul-201726-jul-2017

Publicatie series

NaamElectronic Proceedings in Theoretical Computer Science (EPTCS)


Conference16th Conference on Theoretical Aspects of Rationality and Knowledge (TARK 2017)
Land/RegioUnited Kingdom

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