 Mertens-stable equilibrium

Mertens-stable equilibrium is a concept from game theory, particularly in the context of non-cooperative games. It refers to a way of identifying equilibria in games that is robust under the consideration of deviations by players. In a game, a strategy profile (a set of strategies chosen by players) can be considered an equilibrium if no player has an incentive to unilaterally deviate from their strategy, given the strategies of the others.