The “Ellsberg phenomenon" has played a significant role in research on imprecise probabilities. Fox and Tversky [5] have attempted to explain this phenomenon in terms of their “comparative ignorance" hypothesis. We challenge that explanation and present empirical work suggesting an explanation that is much closer to Ellsberg's own diagnosis.
Keywords. Ellsberg, comparative ignorance, ambiguity aversion
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Authors addresses:
Horacio Arlo-Costa
5523 HOWE ST. #2, PITTSBURGH, PA, 15232
Jeffrey Helzner
Department of Philosophy
Columbia University
1150 Amsterdam Avenue
708 Philosophy Hall, MC 4971
New York, NY10027
E-mail addresses:
| Horacio Arlo-Costa | hcosta@andrew.cmu.edu |
| Jeffrey Helzner | jh2239@columbia.edu |
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