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比特币在新冠疫情爆发前及期间是否为伊斯兰股票市场提供了避险作用?与黄金的比较分析。

Does bitcoin provide hedge to Islamic stock markets for pre- and during COVID-19 outbreak? A comparative analysis with gold.

作者信息

Chkili Walid, Ben Rejeb Aymen, Arfaoui Mongi

机构信息

University of Carthage, Faculty of Economics and Management of Nabeul, Tunisia.

University of Tunis El Manar, Faculty of Economics and Management of Tunis, International Finance Group lab. Tunisia.

出版信息

Resour Policy. 2021 Dec;74:102407. doi: 10.1016/j.resourpol.2021.102407. Epub 2021 Oct 11.

Abstract

This paper applies the DCC-FIGARCH model to investigate the role of Bitcoin as a hedge and safe haven for Islamic stock markets in comparison with gold. We use daily data for the period January 2010-May 2020, which covers the recent COVID-19 pandemic. Empirical results show that the dynamic correlation between Bitcoin and Islamic stock markets is low and usually negative during major economic and political events suggesting that Bitcoin qualifies as a safe haven against Islamic stock markets downturns. Extending our analysis to portfolio management, findings reveal that the diversification benefits of Bitcoin are most times stable and increase significantly during turbulent periods. Thereby, adding Bitcoin in a portfolio of Islamic stocks reduce the risk of portfolio. Finally, as regards the COVID-19 outbreak period, we find that the hedging strategy involving Bitcoin leads to a higher cost during the crisis. These results provide substantial recommendations for Islamic investors and portfolio managers.

摘要

本文应用DCC - FIGARCH模型,与黄金相比,研究比特币作为伊斯兰股票市场的避险资产和安全避风港的作用。我们使用了2010年1月至2020年5月期间的日数据,该时间段涵盖了近期的新冠疫情。实证结果表明,在重大经济和政治事件期间,比特币与伊斯兰股票市场之间的动态相关性较低,且通常为负,这表明比特币有资格作为防范伊斯兰股票市场低迷的安全避风港。将我们的分析扩展到投资组合管理,研究结果显示,比特币的多元化收益大多时候是稳定的,并且在动荡时期会显著增加。因此,在伊斯兰股票投资组合中加入比特币可以降低投资组合的风险。最后,关于新冠疫情爆发期,我们发现涉及比特币的套期保值策略在危机期间导致更高的成本。这些结果为伊斯兰投资者和投资组合经理提供了重要建议。

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