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美联储是否对住房和股票价格作出了反应?一项时变分析

Has the Fed Responded to House and Stock Prices? A Time-Varying Analysis
Review of Economics and Statistics · 2021 · Knut Are Aastveit、Francesco Furlanetto、Francesca Loria

中文摘要

本文采用具有时变参数和随机波动率的贝叶斯结构向量自回归模型,考察美联储是否对住房和股票价格作出了系统性反应,以及这一反应是否随时间发生变化。为识别货币政策的系统性成分,我们将向量自回归模型中的利率方程解释为一项扩展的货币政策规则,该规则对通货膨胀、产出缺口、住房价格和股票价格作出反应。研究结果表明,美国货币政策的系统性成分对实际股票价格增长的反应显著但呈间歇性,主要集中在经济衰退和金融不稳定时期;而仅在大衰退前的若干年中将实际住房价格增长纳入考量。估计反应中约有一半反映了资产价格对未来通货膨胀和实际经济活动的预测作用,其余部分则反映了对股票价格和住房价格的直接反应。

Abstract

Abstract We investigate whether the Federal Reserve has responded systematically to house and stock prices and whether this response has changed over time using a Bayesian structural VAR model with time-varying parameters and stochastic volatility. To recover the systematic component of monetary policy, we interpret the interest rate equation in the VAR as an extended monetary policy rule responding to inflation, the output gap, house prices, and stock prices. Our results indicate that the systematic component of monetary policy in the United States responded to real stock price growth significantly but episodically, mainly around recessions and periods of financial instability, and took real house price growth into account only in the years preceding the Great Recession. Around half of the estimated response captures the predictor role of asset prices for future inflation and real economic activity, while the remaining component reflects a direct response to stock prices and house prices.
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