Hawk-Dove-Retaliator game

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An extension of the Hawk-Dove game, with the additional strategy available of fighting conventionally and escalating only if the adversary escalates: a Retaliator normally plays Dove but responds to a Hawk opponent by playing Hawk. The game was introduced in 1973 by the English biologist John Maynard Smith (1920–2004) and the US physicist and chemist George R. Price (1922–75), who showed that the evolutionarily stable strategy is Retaliator.

Subjects: Psychology.

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