RT Journal Article T1 Mental equilibrium and strategic emotions A1 Winter, Eyal A1 Méndez Naya, Luciano A1 García Jurado, Ignacio K1 Games K1 Equilibrium K1 Behavioral Economics K1 Emotions AB We model mental states as part of an equilibrium notion. In a mental equilibrium each player “selects” an emotional state that determines the player’s preferences over the outcomes of the game. These preferences typically differ from the players’ material preferences. The emotional states interact to play a Nash equilibrium and, in addition, each player’s mental state must be a best response to the mental states of the others (in the sense of maximizing material payoffs). We discuss the concept behind the definition of mental equilibrium and examine it in the context of some of the most popular games discussed in the experimental economics literature. In particular, our approach allows us to identify the mental states (the psychology) that lead players to play various prominent experimental outcomes. We provide necessary and sufficient conditions for mental equilibria to be sustained by material preferences. Finally, we discuss the concept of collective emotions, which is based on the idea that players can coordinate their mental states. PB Informs YR 2017 FD 2017-05-01 LK https://hdl.handle.net/10347/38563 UL https://hdl.handle.net/10347/38563 LA eng NO Ministerio de Economía y Competitividad through projects MTM2011-27731-C03 and MTM2014-53395-C3-1-P. DS Minerva RD 28 abr 2026