Best response
GAME THEORETIC CONCEPT OF A STRATEGY THAT PRODUCES THE MOST FAVORABLE OUTCOME FOR A PLAYER
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In game theory, the best response is the strategy (or strategies) which produces the most favorable outcome for a player, taking other players' strategies as given (; ). The concept of a best response is central to John Nash's best-known contribution, the Nash equilibrium, the point at which each player in a game has selected the best response (or one of the best responses) to the other players' strategies .