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	Equilibrio Perfetto nei Sottogiochi	Equilibrio di Nash
Campo	Teoria dei giochi	Teoria dei giochi
Famiglia	Machine learning	Machine learning
Anno di origine	1965	1950
Ideatore	Reinhard Selten	John Nash
Tipo	algorithm	algorithm
Fonte seminale	Selten, R. (1965). Spieltheoretische Behandlung eines Oligopolmodells mit Nachfrageträgheit. Zeitschrift für die gesamte Staatswissenschaft, 121, 301-324.	Nash, J. F. (1950). Equilibrium points in N-person games. Proceedings of the National Academy of Sciences, 36(1), 48-49.
Alias	Backward Induction, Sequential Equilibrium, Extensive-Form Equilibrium	Lemke-Howson Equilibrium, Completely Labeled Pair
Correlati	4	4
Sintesi	Subgame Perfect Equilibrium (SPE) is a refinement of Nash Equilibrium for sequential games, introduced by Reinhard Selten in 1965. It requires that strategy profiles constitute a Nash Equilibrium in every subgame, eliminating non-credible threats and incredible promises. Backward induction is the primary computational method for finding SPE in finite games.	Nash Equilibrium is a game-theoretic solution concept where no player can unilaterally deviate to improve their payoff. Formalized by John Nash in 1950, the Lemke-Howson algorithm computationally finds equilibria in bimatrix games by identifying completely labeled vertex pairs in the strategy polytopes.