Fat Tails and Spurious Estimation of Consumption-Based Asset Pricing Models

Fat Tails and Spurious Estimation of Consumption-Based Asset Pricing Models
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基于消费的资产定价模型的肥尾和虚假估计

DOI:
10.2139/ssrn.2495151
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发表时间:
2016
期刊:
ERN: Asset Pricing Models (Topic)
影响因子:
--
通讯作者:
K. Walsh
K. Walsh
中科院分区:
--
文献类型:
--
作者:
Alexis Akira Toda;K. Walsh

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基于异构智能体消费的资产定价模型中欧拉方程的标准广义矩估计方法在肥尾条件下是不一致的,因为GMM准则是渐近随机的。为了说明这一点,我们从一个分析可解的不完全市场动态一般均衡模型中生成资产回报和消费数据,该模型在消费中表现出幂律。蒙特卡罗实验表明,标准GMM估计是不一致的,容易受到II型误差(不正确的不拒绝错误模型)的影响。通过将代理人划分为年龄队列来估计过度识别的模型似乎可以减轻I型和II型错误。
The standard generalized method of moments (GMM) estimation of Euler equations in heterogeneous-agent consumption-based asset pricing models is inconsistent under fat tails because the GMM criterion is asymptotically random. To illustrate this, we generate asset returns and consumption data from an incomplete-market dynamic general equilibrium model that is analytically solvable and exhibits power laws in consumption. Monte Carlo experiments suggest that the standard GMM estimation is inconsistent and susceptible to Type II errors (incorrect non-rejection of false models). Estimating an overidentified model by dividing agents into age cohorts appears to mitigate Type I and II errors.
DOI: 10.2307/2289692
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期刊: --
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DOI: --
发表时间: 2007
期刊: SSRN working paper series 1015769
影响因子: --
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