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Price Dispersion, Private Uncertainty, and Endogenous Nominal Rigidities

机译:价格分散,私人不确定性和内源名义刚性

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This article shows that when agents learn from prices, large private uncertainty may result from a small amount of heterogeneity. As in a Phelps–Lucas island model, final producers look at the prices of their local inputs to infer aggregate conditions. However, market linkages between islands make the informativeness of local prices endogenous to general equilibrium relations. In this context, I show that a vanishingly small heterogeneity in local conditions is enough to generate an equilibrium in which prices are rigid to aggregate shocks and transmit only partial information. I use this insight as a microfoundation for price rigidity in an otherwise frictionless monetary model and show that even a tiny amount of dispersion in fundamentals can lead to large non-neutrality of money.
机译:本文展示,当代理商从价格中学习时,少量的异质性可能导致大量的私人不确定性。 与菲尔普斯卢卡斯岛式一样,最终生产商看出当地投入的价格以推断出汇总条件。 然而,岛屿之间的市场联系使当地价格内源性对一般均衡关系的信息性。 在这种情况下,我表明,在当地条件下的消失的小异质性足以产生均衡,其中价格刚性地汇总冲击并仅传输部分信息。 我使用这种洞察力作为价格刚性的微焦于违反的货币模型,表明即使基本面的微小分散也会导致大量的金钱。

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