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Ambiguity aversion in the long run: 'To disagree, we must also agree'

机译:从长远来看,歧义厌恶:“不同意,我们也必须同意”

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We consider an economy populated by smooth ambiguity-averse agents with complete markets of securities contingent to economic scenarios, where bankruptcy is permitted but there is a penalty for it. We show that if agents' posterior belief reductions given by their "average probabilistic beliefs" do not become homogeneous then an equilibrium does not exist. It is worth noting that our main result does not imply any convergence of ambiguity perception or even the attitudes towards it. In this way, complete markets with default and punishment allow for ambiguity aversion in the long run, and the agents can disagree on their ambiguity perception but they must agree on their expected beliefs. (C) 2016 Elsevier Inc. All rights reserved.
机译:我们考虑一个经济体,该经济体由规避歧义的行为主体组成,其证券市场完全取决于经济情况,在这种情况下,虽然允许破产,但会受到惩罚。我们表明,如果代理人的“平均概率信念”所给出的后验信念减少不变得同质,那么就不存在均衡。值得一提的是,我们的主要结果并不意味着歧义认知或态度的任何融合。这样,具有违约和惩罚的完整市场从长远来看就可以避免歧义,并且代理商可以就歧义认知不同意,但必须同意他们的预期信念。 (C)2016 Elsevier Inc.保留所有权利。

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