Cumulative Prospect Theory (Kahneman, Tversky, 1979, 1992) holds that the value function is described using a power function, and is concave for gains and convex for losses. These postulates are questioned on the basis of recently reported experiments, paradoxes (gain-loss separability...

Prospect Theory (1979) and its Cumulative version (1992) argue for probability weighting to explain lottery choices. Decision Utility Theory presents an alternative solution, which makes no use of this concept. The new theory postulates a double S-shaped decision utility curve similar to the one...

This short paper demonstrates that the claim of Cumulative Prospect Theory (CPT) that people are risk seeking for loss prospects appears to be merely a result of using a specific form of the probability weighting function to estimate the power factor of the value function. Using experimental...

This short paper shows that the Allais Paradox and the Common Ratio Effect - regarded as classic examples of the violation of the Expected Utility Theory Axioms - may be easily explained by assuming that changes in wealth (i.e. gains and losses) are perceived in relative terms. The preference...