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No externalities: a characterization of efficiency and incentive compatibility with public goods

机译:无外部性:效率和激励与公共物品兼容的特征

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摘要

We show that efficient anonymous incentive compatible (dominant strategy) mechanisms for public goods eliminate externalities, i.e., each individual is unable to change the welfare of anyone else. The characterization is used to derive existence and non-existence results for models with a finite number of individuals and to explain existence results in the continuum. A similar characterization and conclusions are demonstrated for private goods in (J Econ Theory 85:169–225, 1999). However, unlike private goods, elimination of externalities with public goods implies that individuals cannot change the outcome. Hence, such mechanisms provide only weak incentives for truth-telling.
机译:我们证明了公共物品的有效的匿名激励兼容(主导策略)机制消除了外部性,即每个人都无法改变其他任何人的福利。表征用于导出具有有限个体数的模型的存在和不存在结果,并解释连续体中的存在结果。 (J Econ Theory 85:169-225,1999)证明了对私人物品的类似特征和结论。但是,与私人物品不同,消除公共物品的外部性意味着个人无法改变结果。因此,这样的机制仅提供了薄弱的诱因。

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  • 来源
    《Social Choice and Welfare》 |2012年第4期|697-719|共23页
  • 作者

    Joseph M. Ostroy; Uzi Segal;

  • 作者单位

    Department of Economics UCLA Los Angeles CA USA;

    Department of Economics Boston College Chestnut Hill MA USA;

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  • 原文格式 PDF
  • 正文语种 eng
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