多个代理人情况下公共物品供给的一般问题

发布时间：2018-01-19 11:33

本文关键词： 公共物品渐进有效渐进无效一致同意率约束　出处：《武汉大学》2004年硕士论文　论文类型：学位论文

【摘要】：Mailath及Postlewaite在其1990年的论文中证明了公共物品供给的渐进无效性，即随着经济中个体个数增加到无穷大，公共物品被提供的概率趋向于零(而此时公共物品应被提供的概率趋向于1)。本文将Mailath及Postlewaite(1990)的文章中的“个体理性”约束(即任何机制的通过必须得到全体个体的一致同意)放松成为了一个更为一般的、称为“一致同意率约束”的约束(即一个机制能被通过当且仅当全部个体中有某一比例部分以上的个体同意该机制，譬如在简单多数原则中，，该比例值就为1／2，在本文中我们称这一事先给定的比例为“一致同意率”)。本文发现，如果中央计划者所要求的一致同意率低于某一个临界值(该临界值由模型的参数决定)，那么当经济中个体趋向于无穷时，公共物品被提供的概率将趋于1。如果中央计划者要求的一致同意率高于某一个临界值，那么当经济中个体趋向于无穷时，公共物品被提供的概率将趋于0。因此，Maialth及Postlewaite(1990)的结论成为本文结论中的一个特例。
[Abstract]:In their paper of 1990, Mailath and Postlewaite proved the gradual inefficiency of public goods supply, that is, with the increase of the number of individuals in the economy to infinity. The probability of public goods being provided tends to zero (and the probability that public goods should be provided tends to 1). In this paper, Mailath and postlewaite1990). The relaxation of the "individual rationality" constraint in the article (that is, the adoption of any mechanism must obtain the unanimous consent of all individuals) has become a more general one. A constraint called a "consensus rate constraint" (that is, a mechanism can be adopted if and only if more than one part of the total individual agrees with the mechanism, for example, in the simple majority principle.). The ratio is 1 / 2, and in this paper we call this predefined ratio "consensus rate". If the consensus rate required by the central planner is lower than a certain threshold determined by the parameters of the model, then when the economy tends to be infinite. If the consensus rate required by the central planner is higher than a certain threshold, then when the individual in the economy tends to be infinite. Therefore, the conclusion of Maialth and Postlewaite1990) becomes a special case in this paper.
【学位授予单位】：武汉大学
【学位级别】：硕士
【学位授予年份】：2004
【分类号】：F062.6

【相似文献】