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Games 2010, 1(3), 189-220; doi:10.3390/g1030189
Shapley Polygons in 4 x 4 Games
Received: 9 June 2010; Accepted: 14 July 2010 / Published: 15 July 2010
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Abstract: We study 4 x 4 games for which the best response dynamics contain a cycle. We give examples in which multiple Shapley polygons occur for these kinds of games. We derive conditions under which Shapley polygons exist and conditions for the stability of these polygons. It turns out that there is a very strong connection between the stability of heteroclinic cycles for the replicator equation and Shapley polygons for the best response dynamics. It is also shown that chaotic behaviour can not occur in this kind of game.
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