Five descriptive models of risky decision making are tested in this article, including four quantitative models and one heuristic account. Seven studies with 1802 participants were conducted to compare accuracy of predictions to new tests of first order stochastic dominance. Although the...

A behavioral definition of loss aversion is proposed and its implications for original and cumulative prospect theory are analyzed. Original prospect theory is in agreement with the new loss aversion condition, and there utility is capturing all effects of loss aversion. In cumulative prospect...

Using data from Current Population Survey Tobacco Use Supplements spanning 1992–2002, this study shows that smokers who plan to quit smoking are more supportive of regulations than are other smokers. Failed quitters who plan to try again are more supportive of restrictions than are smokers...

Understanding choice under risk requires knowledge of beliefs and preferences. A variety of methods have been proposed to elicit peoples’ beliefs. The efficacy of alternative methods, however, has not been rigorously documented. Herein we use an experiment to test whether an induced...

The two versions of prospect theory, original prospect theory (OPT; Kahneman and Tversky, 1979) and cumulative prospect theory (CPT; Tversky and Kahneman, 1992), use different composition rules to combine the value function and the probability weighting function and hence value gambles with two...

Bayesian decision theory assumes that agents making choices assign subjective probabilities to outcomes, even in cases where information on probabilities is obviously absent. Here we show that agents that presume that they are equal risks can share risks mutually beneficially, even if the...