Dynamically consistent updating of multiple prior beliefs -- An algorithmic approach

  • Authors:
  • Eran Hanany;Peter Klibanoff;Erez Marom

  • Affiliations:
  • Department of Industrial Engineering, Tel Aviv University, Tel Aviv 69978, Israel;Department of Managerial Economics and Decision Sciences, Kellogg School of Management, Northwestern University, Evanston, IL 60208, USA;Department of Industrial Engineering, Tel Aviv University, Tel Aviv 69978, Israel

  • Venue:
  • International Journal of Approximate Reasoning
  • Year:
  • 2011

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Abstract

This paper develops algorithms for dynamically consistent updating of ambiguous beliefs in the maxmin expected utility model of decision making under ambiguity. Dynamic consistency is the requirement that ex-ante contingent choices are respected by updated preferences. Such updating, in this context, implies dependence on the feasible set of payoff vectors available in the problem and/or on an ex-ante optimal act for the problem. Despite this complication, the algorithms are formulated concisely and are easy to implement, thus making dynamically consistent updating operational in the presence of ambiguity.