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A Taste for Variety

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  • Galit Ashkenazi-Golan
  • Dominik Karos
  • Ehud Lehrer

Abstract

A decision maker repeatedly chooses one of a finite set of actions. In each period, the decision maker's payoff depends on fixed basic payoff of the chosen action and the frequency with which the action has been chosen in the past. We analyze optimal strategies associated with three types of evaluations of infinite payoffs: discounted present value, the limit inferior, and the limit superior of the partial averages. We show that when the first two are the evaluation schemes, a stationary strategy can always achieve the best possible outcome. However, for the latter evaluation scheme, a stationary strategy can achieve the best outcome only if all actions that are chosen with strictly positive frequency by an optimal stationary strategy have the same basic payoff.

Suggested Citation

  • Galit Ashkenazi-Golan & Dominik Karos & Ehud Lehrer, 2024. "A Taste for Variety," Papers 2405.00561, arXiv.org.
  • Handle: RePEc:arx:papers:2405.00561
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    References listed on IDEAS

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    1. Koszegi, Botond & Rabin, Matthew, 2004. "A Model of Reference-Dependent Preferences," Department of Economics, Working Paper Series qt0w82b6nm, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
    2. Botond Kőszegi & Matthew Rabin, 2006. "A Model of Reference-Dependent Preferences," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 121(4), pages 1133-1165.
    3. Becker, Gary S & Murphy, Kevin M, 1988. "A Theory of Rational Addiction," Journal of Political Economy, University of Chicago Press, vol. 96(4), pages 675-700, August.
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