When is tit-for-tat unbeatable?

We characterize the class of symmetric two-player games in which tit-for-tat cannot be beaten even by very sophisticated opponents in a repeated game. It turns out to be the class of exact potential games. More generally, there is a class of simple imitation rules that includes tit-for-tat but also...

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Bibliographic Details
Main Authors: Dürsch, Peter (Author) , Oechssler, Joerg (Author) , Schipper, Burkhard (Author)
Format: Article (Journal)
Language:English
Published: 2014
In: International journal of game theory
Year: 2013, Volume: 43, Issue: 1, Pages: 25-36
ISSN:1432-1270
DOI:10.1007/s00182-013-0370-1
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/s00182-013-0370-1
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Author Notes:Peter Duersch · Jörg Oechssler · Burkhard C. Schipper
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When is tit-for-tat unbeatable? by Dürsch, Peter (Author) , Oechssler, Joerg (Author) , Schipper, Burkhard (Author) ,


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