Scandinavian Working Papers in Economics

SITE Working Paper Series,
Stockholm School of Economics, Stockholm Institute of Transition Economics

No 7: Paying Attention to Payoffs in Analogy-Based Learning

Topi Miettinen ()
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Topi Miettinen: Stockholm Institute of Transition Economics, Postal: Stockholm Institute of Transition Economics, Stockholm School of Economics, P.O. Box 6501, SE-113 83 Stockholm, Sweden

Abstract: This paper introduces the payoff-confirming analogy-based expectation equilibrium (PCABEE) as a way to refine the set of analogy-based equilibria and the associated admissible analogy partitions. In addition to the actions of others, own payoff history provides information about others’ strategies but, yet, non-Bayesian Nash equilibria may exist both with an incorrect and a correct prior. We provide general conditions when this happens. Two stylized employer-employee interactions, one with a correct and one with an incorrect prior, are provided illustrating how PCABEE can be used to analyze robust stereotypes and how incorrect such stereotypes may lead to discrimination.

Keywords: analogy expectations; bounded rationality; curse; learning; discrimination; stereotypes

JEL-codes: C72; D82

31 pages, December 28, 2009

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