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We find that in cumulative prospect theory (CPT) with a concave value function in gains, a lottery with finite expected value may have infinite subjective value. This problem does not occur in expected utility theory. We characterize situations in CPT where the problem can be resolved. In...
Persistent link: https://www.econbiz.de/10005761169
We demonstrate that in simple 2 X 2 games (cumulative) prospect theory preferences can be evolutionarily stable, i.e. a population of players with prospect theory preferences can not be invaded by more rational players. This holds also if probability weighting is applied to the probabilities of...
Persistent link: https://www.econbiz.de/10008479258
We study how the framework of classical game theory changes when the preferences of the players are described by Prospect Theory instead of Expected Utility Theory. Specifically, we study the influence of framing effect and probability weighting on the existence and specific structure of Nash...
Persistent link: https://www.econbiz.de/10005222539
We prove that under very weak conditions optimal financial products have to be co-monotone with the inverted state price density. Optimality is meant in the sense of the maximization of an arbitrary preference model, e.g. Expected Utility Theory or Prospect Theory. The proof is based on methods...
Persistent link: https://www.econbiz.de/10005222548
We show that security-potential-aspiration theory (SP/A) and cumulative prospect theory (CPT), although based on very different psychological principles are mathematically very similar when studied in the appropriate framework. This helps to interpret results on portfolio optimization under...
Persistent link: https://www.econbiz.de/10008866996
The paper first shows that financial market equilibria need not to exist if agents possess cumulative prospect theory preferences with piecewise-power value functions. This is due to the boundary behavior of the cumulative prospect theory value function, which might cause an infinite...
Persistent link: https://www.econbiz.de/10008870850
Ambiguity aversion has been suggested as a potential explanation for the equity premium puzzle in recent theoretical models. To test this hypothesis, we measure the amount of ambiguity aversion in a large-scale international survey. A comparison to the average equity premia in these countries...
Persistent link: https://www.econbiz.de/10010693386
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