Nash equilibrium: A Nash equilibrium in game theory is a set of strategies, one for each player, such that no player has an incentive to change their strategy given the strategies of the other players. It is a situation in which all players are making the best possible decision given the decisions of the other players. See also Game theory._____________Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments. |