COVID-19 风险与全球石油价格冲击之间的因果关系:来自时间和频率因果关系方法的证据

P. K. Sahoo, Debasis Pahi, Biplab Kumar Guru, Nirupama Mohanty
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引用次数: 0

摘要

本文利用 2020 年 12 月 31 日至 2021 年 4 月 28 日的每日数据,研究了全球石油价格收益率与 COVID-19 总指数和 COVID-19 不确定性指数之间的因果关系。因果检验结果表明,从 COVID-19 总指数到油价收益率以及从不确定性指数到油价收益率之间存在单向因果关系。此外,频域因果关系也显示了短期和长期的相同结果。从政策角度来看,投资者和业内人士应关注 COVID-19 带来的不确定性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Causal Nexus Between COVID-19 Risk and Global Oil Price Shocks: Evidence From a Time and Frequency Causality Approach
This paper examines the causal relationship between global oil price returns and aggregate COVID-19 index and COVID-19 uncertainty index by using daily data from 31st December 2020 to 28th April 2021. The results from the causality test show unidirectional causality from aggregate COVID-19 index to oil price returns and from uncertainty index to oil price returns. Furthermore, the frequency domain causality reveals the same results for both short and long periods. From a policy perspective, investors and industry people should pay attention to the uncertainty caused by COVID-19.
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