Framing and repetition effects on risky choices: A behavioral approach

In this study we analyze framing effects caused by two versions of the choice (multiple price) list procedure used to elicitate individual risk preferences. In the probability equivalence (PE) version, subjects face pairwise choices between lotteries within a choice list. In the certainty equivalence (CE) version, subjects are asked to state a minimum selling price to give up the lottery they cope to. We implement a within-subjects experiment allowing for preference imprecision and preference for compound lotteries, by means of repetition of identical risk tasks. Introducing different variations in the number of lottery options offered with and without decreasing their range, we find that changes in the framework disturb subject’s risk preferences only in the CE version.