Risk aversion is traditionally defined in the context of lotteries over monetary payoffs. This paper extends the notion of risk aversion to a more general setup where outcomes (consequences) may not be measurable in monetary terms and people may have fuzzy preferences over lotteries, i.e. they...

In the television show Deal or No Deal an individual faces a sequence of binary choices between a risky lottery with equiprobable prizes of up to half a million euros and a monetary amount for certain. The decisions of 348 contestants from Italian and British versions of the show are used to...

Conventional parameterizations of cumulative prospect theory do not explain the St. Petersburg paradox. To do so, the power coefficient of an individual's utility function must be lower than the power coefficient of an individual's probability weighting function

In binary choice between discrete outcome lotteries, an individual may prefer lottery 1 L to lottery 2 L when the probability that 1 L delivers a better outcome than 2 L is higher than the probability that 2 L delivers a better outcome than 1 L. Such a preference can be rationalized by three...

In binary choice between discrete outcome lotteries, an individual may prefer lottery L1 to lottery L2 when the probability that L1 delivers a better outcome than L2 is higher than the probability that L2 delivers a better outcome than L1. Such a preference can be rationalized by three standard...

Elicitation methods in decision making under risk allow a researcher to infer the subjective utilities of outcomes as well as the subjective weights of probabilities from the observed preferences of an individual. An optimally efficient elicitation method is proposed, which takes into account...

A standard method to elicit certainty equivalents is the Becker-DeGroot-Marschak (BDM) procedure. We compare the standard BDM procedure and a BDM procedure with a restricted range of minimum selling prices that an individual can state. We find that elicited prices are systematically affected by...

The centipede game is a two-player finite game of perfect information where a unique subgame perfect Nash equilibrium appears to be intuitively unappealing and descriptively inadequate. This paper analyzes behavior in the centipede game when a traditional game-theoretical assumption that players...

Geometric utility theory is proposed for modeling decision making under risk and uncertainty. If a decision maker's preferences satisfy four standard behavioral assumptions (completeness, transitivity, continuity and the independence axiom) then they admit a geometric utility representation....

Intertemporal choice is intuitively analogous to choice under risk/uncertainty when outcomes are viewed as consequences received in an uncertain future. "Discounted incremental utility" (DIU) model of intertemporal choice parallels expected utility representation of risk preferences. DIU...