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Efficient and strategy-proof social choice when preferences are single-dipped

机译:偏好一触即发,有效且符合策略的社交选择

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摘要

We study the problem of locating a single public good along a segment when agents have single-dipped preferences. We ask whether there are unanimous and strategy-proof rules for this model. The answer is positive and we characterize all such rules. We generalize our model to allow the set of alternatives to be unbounded. If the set of alternatives does not have a maximal and a minimal element, there is no meaningful notion of efficiency. However, we show that the range of every strategy-proof rule has a maximal and a minimal element. We then characterize all strategy-proof rules.
机译:我们研究了当代理人具有单一蘸偏好时,在细分市场中定位单个公共物品的问题。我们询问此模型是否具有一致且符合策略的规则。答案是肯定的,我们对所有这些规则进行了描述。我们对模型进行泛化,以使备选方案集不受限制。如果备选方案集没有最大和最小元素,则没有有意义的效率概念。但是,我们表明,每个策略证明规则的范围都有一个最大元素和一个最小元素。然后,我们描述所有防策略规则。

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