撒哈拉以南非洲的股市能否抵御健康冲击?

IF 1.3 Q3 ECONOMICS Journal of Financial Economic Policy Pub Date : 2021-12-17 DOI:10.1108/jfep-03-2021-0073
Terver Kumeka, P. Ajayi, O. Adeniyi
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引用次数: 4

摘要

本文旨在研究健康和其他外生冲击对非洲股票市场的影响。特别是,作者审查了12个非洲经济体的主要股票市场在最近的全球大流行期间的弹性。设计/方法/方法本文使用最新的面板向量自回归模型,该模型使我们能够捕捉股票市场对2019冠状病毒病、商品市场和汇率冲击的反应。为了稳健性,作者还分析了面板格兰杰因果检验。获取的数据为2020年1月2日至2020年12月31日。研究结果表明,COVID-19病例和死亡人数的增长对这些经济体的股市回报没有任何实质性影响。在商品市场方面,作者发现黄金价格对股票收益具有负同时效应,但这种效应在第5天左右消失,而原油价格对股票收益具有显著的正同时影响,并在第5天左右收敛。作者进一步发现,汇率对股票收益具有同步和非线性的影响,并且与其他变量相比似乎更为显著。总体而言,研究结果表明,非洲股市似乎对2019冠状病毒病疫情具有灵活性和韧性,但受到大宗商品价格波动和外汇市场等其他外部冲击的影响。然而,这种效果是短暂的——只有一到五天。实际意义根据研究结果,应制定政策,通过对冲商品不稳定性和确保本币融资来支持金融市场。还建议政策制定者集中精力管理其汇率市场的不确定性,并发展健全和有效的国内金融市场,以鼓励本地和外国投资者。关于灾害(如COVID-19大流行)对股票市场的影响已经进行了几项研究,但只有少数研究考察了股票市场对健康和其他外生冲击的弹性。本研究不仅试图检验COVID-19健康冲击对股市的影响,还试图分析抽样股市的弹性。作者还分析了股市对大宗商品市场和汇率冲击的弹性。
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Is stock market in Sub-Saharan Africa resilient to health shocks?
Purpose This paper aims to examine the impact of health and other exogenous shocks on stock markets in Africa. Particularly, the authors examined the resilience of the major stock markets in 12 African economies during the recent global pandemic. Design/methodology/approach This paper uses the recent panel vector autoregressive model, which enables us to capture the response of stock markets to shocks in COVID-19, commodity markets and exchange rate. For robustness, the authors also analysed the panel Granger causality test. Data was obtained for the period ranging from 2 January 2020 to 31 December 2020. Findings The results show that the growth in COVID-19 cases and deaths do not have any substantial impact on the stock market returns of these economies. In terms of commodity markets, the authors find that gold price has a negative contemporaneous effect on stock returns, but the effect fizzles out around the fifth day while crude oil price, on the other hand, has a significant positive simult aneous impact on stock returns and also converges around the fifth day. The authors further find that the exchange rate has a contemporaneous and nonlinear effect on stock returns and seems to be more dramatic when compared with the other variables. Overall, the results show that stock markets in Africa appear to be flexible and resilient against the COVID-19 outbreak but are affected by other exogenous shocks such as volatile commodity prices and the foreign exchange market. The effect is, however, short-lived – between one to five days. Practical implications Following the study’s findings, policies should be put in place to support financial markets by way of hedging against commodity instability and securing domestic currency financing. Policymakers are also recommended to concentrate on managing the uncertainties around their exchange rate markets and develop robust and efficient domestic financial markets to encourage local and foreign investors. Originality/value Several studies have been carried out on the effects of disasters (such as the COVID-19 pandemic) on stock markets, but only a few studies have examined the resilience of stock markets to health and other exogenous shocks. This study’s attempt is not only to examine the impact of COVID-19 health shocks on stock markets but also to analyse the resilience of the sampled stock markets. The authors also analyse the resilience of stock markets to commodity markets and exchange rates shocks.
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来源期刊
CiteScore
2.80
自引率
8.30%
发文量
13
期刊介绍: The Journal of Financial Economic Policy publishes high quality peer reviewed research on financial economic policy issues. The journal is devoted to the advancement of the understanding of the entire spectrum of financial policy and control issues and their interactions to economic phenomena. Economic and financial phenomena involve complex trade-offs and linkages between various types of risk factors and variables of interest to policy makers and market participants alike. Market participants such as economic policy makers, regulators, banking and competition supervisors, corporations and financial institutions, require timely and robust answers to the contemporary and emerging policy questions. In turn, such answers require thorough input by the academics, policy makers and practitioners alike. The Journal of Financial Economic Policy provides the forum to satisfy this need. The journal publishes and invites concise papers to enable a prompt response to current and emerging policy affairs.
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