论文信息 - Correlated Equilibrium and Behavioral Conformity

Correlated Equilibrium and Behavioral Conformity

Is conformity amongst similar individuals consistent with self-interested behavior? We consider a model of incomplete information in which each player receives a signal, interpreted as an allocation to a role, and can make his action choice conditional on his role. Our main result demonstrates that 'near to' any correlated equilibrium is an approximate correlated equilibrium 'with conformity' -- that is, an equilibrium where all 'similar players' play the same strategy, have the same probability of being allocated to each role, and receive approximately the same payoff; in short, similar players 'behave in an identical way' and are treated nearly equally. To measure 'similarity' amongst players we introduce the notions of approximate substitutes and a (delta,Q)-class games -- a game with Q classes of players where all players in the same class are delta-substitutes for each other.

Myrna Holtz Wooders | Edward Cartwright | M. Wooders | E. Cartwright

[1] Reinhard Selten,et al. Social conformity and equilibrium in pure strategies in games with many players , 2002 .

[2] J. Harsanyi. Games with randomly disturbed payoffs: A new rationale for mixed-strategy equilibrium points , 1973 .

[3] Y. Varoufakis,et al. Some Experimental Evidence on the Evolution of Discrimination, Co-Operation and Perceptions of Fairness , 2002 .

[4] E. Cartwright. Learning to Play Approximate Nash Equilibria in Games with Many Players , 2004 .

[5] R. Aumann. Correlated Equilibrium as an Expression of Bayesian Rationality Author ( s ) , 1987 .

[6] Roger B. Myerson,et al. Game theory - Analysis of Conflict , 1991 .

[7] Eyal Winter,et al. Coordination and Learning Behavior in Large Groups with Asymmetric Players , 2002, Games Econ. Behav..

[8] R. Aumann. Subjectivity and Correlation in Randomized Strategies , 1974 .

[9] Frederick W. Rankin,et al. On the Origin of Convention: Evidence from Coordination Games , 1997 .

[10] Adam Brandenburger,et al. Rationalizability and Correlated Equilibria , 1987 .

[11] S. Hart. Adaptive Heuristics , 2005 .

[12] D. Friedman. Equilibrium in Evolutionary Games: Some Experimental Results , 1996 .

[13] R. Sugden. A Theory of Focal Points , 1995 .

[14] Myrna Holtz Wooders,et al. Approximate cores of games and economies with clubs , 2003, J. Econ. Theory.