| Article ID: | iaor20116982 |
| Volume: | 71 |
| Issue: | 1 |
| Start Page Number: | 11 |
| End Page Number: | 22 |
| Publication Date: | Jul 2011 |
| Journal: | Theory and Decision |
| Authors: | Wakker P |
| Keywords: | behaviour |
This paper discusses Jean‐Yves Jaffray’s ideas on ambiguity and the views underlying his ideas. His models, developed 20 years ago, provide the most tractable separation of risk attitudes, ambiguity attitudes, and ambiguity beliefs available in the literature today.