Ellsberg Revisited: An Experimental Study
通过扩展埃尔斯伯格实验，发现人们对模糊性的态度与对复合客观彩票的态度紧密相关，样本分为三类群体，对应不同理论模型。
An extension to Ellsberg's experiment demonstrates that attitudes to ambiguity and compound objective lotteries are tightly associated. The sample is decomposed into three main groups: subjective expected utility subjects, who reduce compound objective lotteries and are ambiguity neutral, and two groups that exhibit different forms of association between preferences over compound lotteries and ambiguity, corresponding to alternative theoretical models that account for ambiguity averse or seeking behavior. Copyright The Econometric Society 2007.