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On mixed markets with asymmetric information

机译:在信息不对称的混合市场上

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In asymmetric information exchange economies involving both non-negligible and negligible agents, one should expect the failure of the private Core-Walras Equivalence Theorem. This paper shows that if “large” traders are similar to each other, then they lose their market power and hence the Equivalence Theorem can be restored. We also investigate on weaker equivalences among Walrasian expectations allocations, Aubin private core and private core allocations of the original mixed economy and the atomless one associated to it, without the assumption that all atoms are of the same type. Furthermore, extensions of Hervés-Moreno-Yannelis and Schmeidler Theorems (compare Hervés et al. in J Math Econ 41:844–856, 2005a; Schemidler in Econometrica 40:579–580, 1972) are given for differential information economies in which the feasibility constraints are imposed with an equality (exact feasibility).
机译:在涉及不可忽略的主体和可忽略的主体的不对称信息交换经济中,人们应该指望私有核心瓦尔拉斯等价定理的失败。本文表明,如果“大型”交易商彼此相似,那么他们将失去市场支配力,因此可以恢复等价定理。我们还研究了Walrasian期望分配,原始混合经济的Aubin私有核心和私有核心分配以及与之相关的无原子经济分配之间的较弱等价关系,而不假设所有原子都是同一类型。此外,针对不同的信息经济,给出了Hervés-Moreno-Yannelis和Schmeidler定理的扩展(比较Hervés等,J Math Econ 41:844-856,2005a; Schemidler in Econometrica 40:579-580,1972)。可行性约束以等式(完全可行性)强加。

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