Connectedness and spillover between African equity, commodity, foreign exchange and cryptocurrency markets during the COVID-19 and Russia-Ukraine conflict

被引:2
|
作者
Anyikwa, Izunna [1 ]
Phiri, Andrew [2 ]
机构
[1] Nelson Mandela Univ, Dept Econ, ZA-6031 Port Elizabeth, South Africa
[2] Nelson Mandela Univ, Fac Business & Econ Studies, Dept Econ, ZA-6031 Port Elizabeth, South Africa
关键词
African equities; Commodities; Foreign exchange; Cryptocurrencies; Connectedness; Quantile vector autoregressive (QVAR) model; COVID-19; Russia-Ukraine conflict; IMPULSE-RESPONSE ANALYSIS; VOLATILITY SPILLOVERS; OIL;
D O I
10.1186/s43093-023-00227-y
中图分类号
F [经济];
学科分类号
02 ;
摘要
Since the onset of the COVID-19 pandemic, financial and commodity markets have exhibited significant volatility and displayed fat tail properties, deviating from the normal probability curve. The recent Russia-Ukraine war has further disrupted these markets, attracting considerable attention from both researchers and practitioners due to the occurrence of consecutive black swan events within a short timeframe. In this study, we utilized the Quantile-VAR technique to examine the interconnectedness and spillover effects between African equity markets and international financial/commodity assets. Daily data spanning from January 3, 2020, to September 6, 2022, was analyzed to capture tail risks. Our main findings can be summarized as follows. Firstly, the level of connectedness in returns is more pronounced in the lower and upper tails compared to the median. Secondly, during times of crisis, African equity markets primarily serve as recipients of systemic shocks. Lastly, assets such as Silver, Gold, and Natural Gas exhibit greater resilience to systemic shocks, validating their suitability as hedging instruments for African equities, in contrast to cryptocurrencies and international exchange rates. These findings carry significant implications for policymakers and investors in Africa equities.
引用
收藏
页数:18
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