期望效用理论适用吗?一个显示性偏好检验

Is Expected Utility Theory Applicable? A Revealed Preference Test

American Journal of Agricultural Economics · 2010
被引 29
人大 AABS 3

中文导读

提出一种方法检验期望效用理论在离散和连续选择中的适用性,发现仅在赌局期望收益相近或超过一半财富面临风险时才成立,并用农业生产数据演示。

Abstract

Abstract We proffer a method to assess the adequacy of expected utility theory (EUT) in empirical studies involving discrete and continuous choices. The method calibrates a utility function to revealed choices and rejects EUT for absurd degrees of implied concavity over the wealth at risk. We find EUT rejections in cases where risk‐averse choices are made between gambles with similar stakes, regardless of their absolute sizes. EUT is shown to be applicable only when expected payoffs of gambles are similar, or when more than half of wealth is at risk. We illustrate our method with an application to agricultural production.

预期效用理论显示偏好检验风险厌恶财富风险