Measuring Inequity Aversion in a Heterogeneous Population Using Experimental Decisions and Subjective Probabilities
结合最后通牒博弈中的选择数据和提议者的主观概率预期，估计了一个不确定性下的决策结构模型，发现不平等厌恶随收益差递增且呈凹函数，且年轻高学历人群的不平等厌恶较低。
We combine choice data in the ultimatum game with the expectations of proposers elicited by subjective probability questions to estimate a structural model of decision making under uncertainty. The model, estimated using a large representative sample of subjects from the Dutch population, allows both nonlinear preferences for equity and expectations to vary across socioeconomic groups. Our results indicate that inequity aversion to one's own disadvantage is an increasing and concave function of the payoff difference. We also find considerable heterogeneity in the population. Young and highly educated subjects have lower aversion for inequity than other groups. Moreover, the model that uses subjective data on expectations generates much better in- and out-of-sample predictions than a model which assumes that players have rational expectations. Copyright Copyright 2008 by The Econometric Society.