提出选举独裁机制，解决集体决策中责任归属模糊的问题。
Responsibility Gap in Collective Decision Making
- 引入选举独裁机制，确保决策责任可追溯到单一主体。
- 完美信息下，仅当机制为选举独裁时责任缺口才为空。
- 不完美信息下，无缺口机制介于两类选举独裁之间。
责任间隙是集体决策机制中一种结果，其中没有单个参与者承担个体责任。在设计决策过程时，通常希望最小化该间隙。本文提出‘选举独裁’概念，并证明：在完全信息设定下，责任间隙为空当且仅当机制为选举独裁；在不完全信息设定下，无责任间隙的机制类严格介于两种选举独裁变体之间。
原文摘要 · Abstract (English)
The responsibility gap is a set of outcomes of a collective decision-making mechanism in which no single agent is individually responsible. In general, when designing a decision-making process, it is desirable to minimise the gap. The paper proposes a concept of an elected dictatorship. It shows that, in a perfect information setting, the gap is empty if and only if the mechanism is an elected dictatorship. It also proves that in an imperfect information setting, the class of gap-free mechanisms is positioned strictly between two variations of the class of elected dictatorships.
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