Article ID: | iaor20072260 |
Country: | United Kingdom |
Volume: | 26 |
Issue: | 6 |
Start Page Number: | 1721 |
End Page Number: | 1728 |
Publication Date: | Dec 2006 |
Journal: | Risk Analysis |
Authors: | Basili Marcello |
Keywords: | values, decision: rules |
Risks induced by extreme events are characterized by small or ambiguous probabilities, catastrophic losses, or windfall gains. Through a new functional, that mimics the restricted Bayes–Hurwicz criterion within the Choquet expected utility approach, it is possible to represent the decision-maker behavior facing both risky (large and reliable probability) and extreme (small or ambiguous probability) events. A new formalization of the precautionary principle is shown and a new functional, which encompasses both extreme outcomes and expectation of all the possible results for every act, is claimed.