原油价格和加密资产:COVID-19大流行的影响是什么?

Héla Mzoughi, Yosra Ghabri, K. Guesmi
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引用次数: 3

摘要

当前的全球COVID-19大流行对石油市场(西德克萨斯中质原油)和加密资产市场产生了不利影响。本文实证研究了市场相互依存在多大程度上可能受到COVID-19效应的驱动。我们对收益前后的对拟合了copula,分析了观察到的依赖结构的变化,讨论了危机传播的不对称性。我们还使用这些发现来构建具有理想预期行为的投资组合。我们发现,在全球大流行之后,依赖结构发生了显著变化,为COVID- 19危机如何影响相互依赖提供了有价值的信息。结果也证明了黄金作为避险资产的内在特性。
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Crude Oil Prices and Crypto-Assets: What Are the Effects of COVID-19 Pandemic?
The current global COVID-19 pandemic is adversely affecting the oil market (West Texas Intermediate) and crypto-assets markets. This paper empirically investigates the extent to which interdependence in markets may be driven by COVID-19 effects. We fit copulas to pairs of before and after returns, analyze the observed changes in the dependence structure, and discuss asymmetries on the propagation of crisis. We also use the findings to construct portfolios possessing desirable expected behavior. We find that the dependence structure changes significantly after the global pandemic providing valuable information on how COVID- 19 crisis affects inter-dependencies. The results also prove the intrinsic characteristic of the gold as a safe haven.
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