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新冠疫情对实际股票价格和实际汇率冲击的全球证据:基于阈值增强型全球向量自回归模型的反事实分析。

Global evidence of the COVID-19 shock on real equity prices and real exchange rates: A counterfactual analysis with a threshold-augmented GVAR model.

作者信息

Salisu Afees A, Ayinde Taofeek O, Gupta Rangan, Wohar Mark E

机构信息

Centre for Econometric & Allied Research, University of Ibadan, Ibadan, Nigeria.

Department of Economics, University of Pretoria, Private Bag X20, Hatfield 0028, South Africa.

出版信息

Financ Res Lett. 2022 Jun;47:102519. doi: 10.1016/j.frl.2021.102519. Epub 2021 Nov 2.

Abstract

In this study, we offer a global perspective on the impacts of the COVID-19 pandemic on financial markets using a multi-country Threshold-Augmented Global Vector Autoregressive Model of Chudik et al. (2020). We document a negative impact of the pandemic on real equity prices across countries (except the United States) and country groupings with the highest negative impact recorded in 2020Q2. The biggest losers are the emerging economies while the biggest gainers are the United States whose real stock prices remain positive and the Euro Area that achieved real exchange rate appreciation when the financial markets were mostly vulnerable. Our results support the effectiveness of the quantitative easing policy regime in the Euro Area during the COVID-19 pandemic and also suggest hedging role for the US stocks among other suggested safe assets.

摘要

在本研究中,我们使用Chudik等人(2020年)的多国阈值增强全球向量自回归模型,对新冠疫情对金融市场的影响提供了一个全球视角。我们记录了疫情对各国(美国除外)实际股票价格的负面影响,以及在2020年第二季度记录的负面影响最大的国家集团。最大的输家是新兴经济体,而最大的赢家是美国,其实际股价保持正值,以及欧元区,在金融市场最脆弱的时候实现了实际汇率升值。我们的结果支持了欧元区在新冠疫情期间量化宽松政策制度的有效性,也表明了美国股票在其他建议的安全资产中的避险作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/932c/8560185/7044fd8e0fe2/gr1a_lrg.jpg

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