Econ Papers Daily / 期刊论文
选择档案内独裁者
Selecting an intra-profile dictator
摘要
Abstract Preferences are often best aggregated by adopting the preference of one individual, who is then called an “intra-profile dictator” since her preference is decisive under the present preference profile. This paper explores how to select intra-profile dictators. First, we demonstrate that under a continuity requirement, any intra-profile dictatorship extends to a full dictatorship when the preference space has more than one dimension. Consequently, we provide two possibility results that allow for discontinuity. The first is an aggregation rule that selects the greatest element according to a linear (and therefore discontinuous) ranking over the preference space. The second is a rule that selects an order statistic according to a linear (and therefore discontinuous) ordering over the preference space.
中文摘要
偏好通常最好通过采纳某一个人的偏好来加总，此人随即被称为“偏好剖面内独裁者”，因为其偏好在当前偏好剖面下具有决定性。本文探讨如何选择偏好剖面内独裁者。首先，我们证明，在连续性要求下，当偏好空间维度大于一时，任何偏好剖面内独裁都会扩展为完全独裁。因此，我们提供了两个允许不连续性的可能性结果。第一个是一种聚合规则，它根据偏好空间上的线性（因而不连续）排序选择最大元素。第二个是一种规则，它根据偏好空间上的线性（因而不连续）排序选择次序统计量。