Econ Papers Daily / 期刊论文
机会集的多样性：偏好满足的视角
Diversity in opportunity sets: perspective from preferences satisficing
摘要
This paper introduces a ranking over opportunity sets based on preferences satisficing: a set satisfices a preference if and only if there exists an element in the set that is considered good enough to meet the preference, and sets are ranked by the number of satisficed preferences. I compare this framework with existing models of ranking over sets and show that, when preferences are not exogenously given, it is characterized by two axioms identical to those in Kreps (1979), who analyzed rankings over sets from the perspective of preferences maximization. This result indicates that we cannot distinguish whether the ranking over sets is generated according to preferences maximization or preferences satisficing.
中文摘要
本文引入了一种基于偏好满足的机会集排序：一个集合满足某一偏好，当且仅当该集合中存在一个被认为足够好以满足该偏好的元素，而集合则根据被满足偏好的数量进行排序。我将这一框架与现有的集合排序模型进行比较，并表明，当偏好并非外生给定之时，该框架可由与Kreps（1979）中相同的两条公理加以刻画；Kreps从偏好最大化的视角分析了集合排序。这一结果表明，我们无法区分集合排序究竟是依据偏好最大化还是偏好满足生成的。