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Eliciting Prospect Theory When Consequences Are Measured in Time Units: “Time Is Not Money”

Mohammed Abdellaoui () and Emmanuel Kemel ()
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Mohammed Abdellaoui: HEC Paris and GREGHEC-CNRS, 78351 Jouy en Josas, Cedex, France

Management Science, 2014, vol. 60, issue 7, 1844-1859

Abstract: We elicited the prospect theory components (utility, probability weighting, and loss aversion) when consequences are expressed as the time dedicated to a specific task or activity. A similar elicitation was performed for monetary consequences to allow an across-attribute (time/money) comparison of the elicited components (at the individual level). We obtained less concave utility and smaller loss aversion for time than for money. Moreover, while the probability weighting was predominantly inverse S -shaped for both attributes, it was less sensitive to probabilities and more elevated for time than for money. This finding implies more optimism for gains and more pessimism for losses. This paper was accepted by Peter Wakker, decision analysis.

Keywords: time risk; expected utility; prospect theory; reference point; utility; probability weighting; decision weights; loss aversion (search for similar items in EconPapers)
Date: 2014
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http://dx.doi.org/10.1287/mnsc.2013.1829 (application/pdf)

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Working Paper: Eliciting Prospect Theory When Consequences Are Measured in Time Units: "Time Is Not Money" (2013)
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