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Sticky information and model uncertainty in survey data on inflation expectations

机译:通胀预期调查数据中的粘性信息和模型不确定性

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This paper compares three reduced-form models of heterogeneity in survey inflation expectations. On the one hand, we specify two models of forecasting inflation based on limited information flows of the type developed in Mankiw and Reis [2002. Sticky information versus sticky prices: a proposal to replace the new Keynesian Phillips curve. Quarterly Journal of Economics 117(4), 1295-1328]. We present maximum likelihood results that suggests a sticky information model with a time-varying distribution structure is consistent with the Michigan survey of inflation expectations. We also compare these 'sticky information' models to the endogenous model uncertainty approach in Branch [2004. The theory of rationally heterogeneous expectations: evidence from survey data on inflation expectations. Economic Journal 114, 497]. Non-parametric evidence suggests that models which allow the degree of heterogeneity to change over time provide a better fit of the data.
机译:本文在调查通胀预期中比较了三种异质性的简化形式模型。一方面,我们根据Mankiw和Reis [2002年开发的类型的有限信息流,指定了两种预测通货膨胀的模型。粘性信息与粘性价格:提议替代新的凯恩斯菲利普斯曲线。经济学季刊117(4),1295-1328]。我们提出最大似然结果,表明具有时变分布结构的粘性信息模型与密歇根州的通胀预期调查一致。我们还将这些“粘性信息”模型与Branch [2004年]的内生模型不确定性方法进行了比较。合理异质预期的理论:来自通胀预期调查数据的证据。经济杂志114,497]。非参数证据表明,允许异质性程度随时间变化的模型可以更好地拟合数据。

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