Ambiguity Aversion with Three or More Outcomes
研究了涉及三个或更多结果的模糊选择问题，揭示了经典两结果Ellsberg问题无法展现的模糊性和模糊厌恶的新方面，并检验了标准模型在这些情况下的预测和表现。
Ambiguous choice problems which involve three or more outcome values can reveal aspects of ambiguity and ambiguity aversion which cannot be displayed in the classic two-outcome Ellsberg urn problems, and hence are not always captured by models designed to accommodate them. These aspects include Allais-type preferences over purely subjective acts, attitudes toward different sources involving different amounts of ambiguity, and attitudes toward ambiguity at different outcome levels. This paper presents a few such examples, and examines the standard models' predictions and performance in such cases.