Structural VARs and noninvertible macroeconomic models

Structural VARs and noninvertible macroeconomic models
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结构性 VAR 和不可逆宏观经济模型

DOI:
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发表时间:
2018
影响因子:
2.1
通讯作者:
Luca Sala
Luca Sala
中科院分区:
经济学3区
文献类型:
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作者:
Mario Forni;Luca Gambetti;Luca Sala

文献摘要

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我们恢复了 C. A. Sims 和 Zha 开创的研究路线(Macroeconomic Dynamics, 2006, 10, 231-272),并做出了两项新颖的贡献。首先,我们提供了对部分基本面的正式处理,即结构向量自回归(VAR)可以精确地或以良好的近似值恢复单个冲击或冲击的子集,即使基础模型是非基本面的。特别是,我们将 Sims 和 Zha 提出的部分基本性度量扩展到有限阶情况,并研究部分基本性对脉冲响应和方差分解分析的影响。其次,我们提出了一个应用程序,用于验证新闻冲击理论并发现它与经验证据相符。
We resume the line of research pioneered by C. A. Sims and Zha (Macroeconomic Dynamics, 2006, 10, 231–272) and make two novel contributions. First, we provide a formal treatment of partial fundamentalness—that is, the idea that a structural vector autoregression (VAR) can recover, either exactly or with good approximation, a single shock or a subset of shocks, even when the underlying model is nonfundamental. In particular, we extend the measure of partial fundamentalness proposed by Sims and Zha to the finite‐order case and study the implications of partial fundamentalness for impulse‐response and variance‐decomposition analysis. Second, we present an application where we validate a theory of news shocks and find it to be in line with the empirical evidence.