Chemkha Rahma, BenSaïda Ahmed, Ghorbel Ahmed, Tayachi Tahar
GFC Laboratory, FSEG Sfax, University of Sfax, Sfax, Tunisia.
College of Business, Effat University, Jeddah, Saudi Arabia.
Q Rev Econ Finance. 2021 Nov;82:71-85. doi: 10.1016/j.qref.2021.07.006. Epub 2021 Aug 5.
The COVID-19 pandemic has caused an unprecedented human and health crisis. The measures taken to contain the damage caused a global economic slowdown. Investors face liquidity pressures resulting from the general downturn in the financial markets, and might change their risk appetite. This paper reassesses the safe haven property of gold as a traditional asset, and Bitcoin which is gradually imposing itself as a new class of asset with unique characteristics. The empirical results, applied on major world stock market indices and currencies, and based on the multivariate asymmetric dynamic conditional correlation model, show the effectiveness of Bitcoin and gold as hedging assets in reducing the risk of international portfolios. Moreover, the analysis provides evidence that during the COVID-19 pandemic, gold is a weak safe haven for the considered assets, while Bitcoin cannot provide shelter due to its increased variability.
新冠疫情引发了一场前所未有的人类与健康危机。为控制损失而采取的措施导致了全球经济放缓。投资者面临金融市场普遍低迷所带来的流动性压力,其风险偏好可能会发生变化。本文重新评估了黄金作为传统资产以及比特币作为逐渐崭露头角的具有独特特征的新型资产类别的避险属性。基于多元非对称动态条件相关模型、应用于主要世界股票市场指数和货币的实证结果表明,比特币和黄金作为避险资产在降低国际投资组合风险方面具有有效性。此外,分析表明,在新冠疫情期间,黄金对于所考虑的资产而言是一种较弱的避险资产,而比特币由于其波动性加剧无法提供避险作用。