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A model of boundedly rational “neuro” agents

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  • Kfir Eliaz
  • Ariel Rubinstein

Abstract

We consider a model in which each agent in a population chooses one of two options. Each agent does not know what the available options are and can choose an option only after observing another agent who has already chosen that option. In addition, the agents’ preferences over the two options are correlated. An agent can either imitate an observed agent or wait until he meets two agents who made different choices, in which case he can compare their choices and choose accordingly. A novel feature of the model is that agents observe not only the choices made by others, but also some information about the process that led them to those choices. We study two cases: In the first, an agent notes whether the observed agent imitated others or whether he actually compared the available alternatives. In the second, an agent notes whether the observed agent’s decision was hasty or not. It is shown that in equilibrium the probability of making a mistake is higher in the second case and that the existence of these nonstandard “neuro” observations systematically biases the equilibrium distribution of choices. Copyright Springer-Verlag Berlin Heidelberg 2014

Suggested Citation

  • Kfir Eliaz & Ariel Rubinstein, 2014. "A model of boundedly rational “neuro” agents," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 57(3), pages 515-528, November.
  • Handle: RePEc:spr:joecth:v:57:y:2014:i:3:p:515-528
    DOI: 10.1007/s00199-014-0834-y
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    1. Bikhchandani, Sushil & Hirshleifer, David & Welch, Ivo, 1992. "A Theory of Fads, Fashion, Custom, and Cultural Change in Informational Cascades," Journal of Political Economy, University of Chicago Press, vol. 100(5), pages 992-1026, October.
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    Cited by:

    1. Dinko Dimitrov & Saptarshi Mukherjee & Nozomu Muto, 2016. "‘Divide-and-choose’ in list-based decision problems," Theory and Decision, Springer, vol. 81(1), pages 17-31, June.

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    More about this item

    Keywords

    Bounded rationality; Neuroeconomics; Choice procedures; Choice process data; D03; D87;
    All these keywords.

    JEL classification:

    • D03 - Microeconomics - - General - - - Behavioral Microeconomics: Underlying Principles
    • D87 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Neuroeconomics

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