A model of choice from lists
提出一个从列表（而非集合）中做出选择的模型，用两个公理刻画了根据偏好选择列表中第一个或最后一个最优选项的所有选择函数，并将其与经典选择对应和随机选择函数联系起来。
The standard economic choice model assumes that the decision maker chooses from <i>sets</i> of alternatives. In contrast, we analyze a choice model in which the decision maker encounters the alternatives in the form of a <i>list</i>. We present two axioms similar in nature to the classical axioms of choice from sets. We show that they characterize all the choice functions from lists that involve the choice of either the first or the last optimal alternative in the list according to some preference relation. We then relate choice functions from lists to the classical notions of choice correspondences and random choice functions.