英文标题:
《Knight--Walras Equilibria》
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作者:
Patrick Beissner and Frank Riedel
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最新提交年份:
2016
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英文摘要:
Knightian uncertainty leads naturally to nonlinear expectations. We introduce a corresponding equilibrium concept with sublinear prices and establish their existence. In general, such equilibria lead to Pareto inefficiency and coincide with Arrow--Debreu equilibria only if the values of net trades are ambiguity--free in the mean. Without aggregate uncertainty, inefficiencies arise generically. We introduce a constrained efficiency concept, uncertainty--neutral efficiency and show that Knight--Walras equilibrium allocations are efficient in this constrained sense. Arrow--Debreu equilibria turn out to be non--robust with respect to the introduction of Knightian uncertainty.
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中文摘要:
奈特式的不确定性自然会导致非线性预期。我们引入了相应的次线性价格均衡概念,并证明了它们的存在性。一般来说,这种均衡会导致帕累托效率低下,并且与阿罗均衡相吻合——只有当净贸易的价值是模糊的时,德布鲁均衡才是——平均而言是自由的。如果没有总的不确定性,效率低下就会普遍出现。我们引入了一个受约束的效率概念,即不确定性——中性效率,并证明Knight——Walras均衡分配在这种约束意义下是有效的。对于奈特不确定性的引入,阿罗——德布鲁均衡被证明是非稳健的。
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分类信息:
一级分类:Quantitative Finance 数量金融学
二级分类:Economics 经济学
分类描述:q-fin.EC is an alias for econ.GN. Economics, including micro and macro economics, international economics, theory of the firm, labor economics, and other economic topics outside finance
q-fin.ec是econ.gn的别名。经济学,包括微观和宏观经济学、国际经济学、企业理论、劳动经济学和其他金融以外的经济专题
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