Multidimensional ellsberg

Kfir Eliaz, Pietro Ortoleva

Research output: Contribution to journalArticlepeer-review


The classical Ellsberg experiment presents individuals with a choice problem in which the probability of winning a prize is unknown (uncertain). In this paper, we study how individuals make choices between gambles in which the uncertainty is in different dimensions: the winning probability, the amount of the prize, the payment date, and the combinations thereof. Although the decision-theoretic models accommodate a rich variety of behaviors, we present experimental evidence that points at systematic behavioral patterns: (i) no uncertainty is preferred to uncertainty on any single dimension and to uncertainty on multiple dimensions, and (ii) "correlated" uncertainty on multiple dimensions is preferred to uncertainty on any single dimension.

Original languageEnglish
Pages (from-to)2179-2197
Number of pages19
JournalManagement Science
Issue number8
StatePublished - Aug 2016


  • Ellsberg paradox
  • Multidimensional uncertainty
  • Uncertainty aversion

All Science Journal Classification (ASJC) codes

  • Strategy and Management
  • Management Science and Operations Research


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