UNDERSTANDING PREFERENCE IMPRECISION
综述了偏好不精确性的不同含义（如模糊性、不完全性、随机性等），探讨它们是否指向同一问题，并报告了偏好不精确性存在的证据及其对理论和实证研究的影响。
Abstract The term ‘preference imprecision’ seems to have different meanings to different people. In the literature, one can find references to a number of expressions. For example: vagueness, incompleteness, randomness, unsureness, indecisiveness and thick indifference curves. Some of these are theoretical constructs, some are empirical. The purpose of this paper is to survey the various different approaches and to try to link them together: to see if they are all addressed to the same issue, and to come to some conclusions. In the course of this survey, we report on evidence concerning the existence of preference imprecision, and its impact on theoretical and empirical work.