Noun
(game theory) a stable state of a system that involves several interacting participants in which no participant can gain by a change of strategy as long as all the other participants remain unchanged
Source: WordNetA Cournot equilibrium occurs when each firm's output maximizes its profits given the output of the other firms, which is a pure-strategy Nash equilibrium. Source: Internet
A Nash equilibrium is presumed to be stable even if T scores equally, on the assumption that there is no long-term incentive for players to adopt T instead of S. This fact represents the point of departure of the ESS. Source: Internet
A game can have a pure-strategy or a mixed-strategy Nash equilibrium. Source: Internet
A refined Nash equilibrium known as coalition-proof Nash equilibrium (CPNE) occurs when players cannot do better even if they are allowed to communicate and make "self-enforcing" agreement to deviate. Source: Internet
A set of strategies is a Nash equilibrium if each represents a best response to the other strategies. Source: Internet
But if every player prefers not to switch (or is indifferent between switching and not) then the set of strategies is a Nash equilibrium. Source: Internet