The implication of cryptocurrency volatility on five largest African financial system stability

Abstract This study examined the interconnectedness and volatility correlation between cryptocurrency and traditional financial markets in the five largest African countries, addressing concerns about potential spillover effects, especially the high volatility and lack of regulation in the cryptocur...

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Main Authors: Tonuchi E. Joseph, Atif Jahanger, Joshua Chukwuma Onwe, Daniel Balsalobre-Lorente
Format: Article
Language:English
Published: SpringerOpen 2024-01-01
Series:Financial Innovation
Subjects:
Online Access:https://doi.org/10.1186/s40854-023-00580-5
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author Tonuchi E. Joseph
Atif Jahanger
Joshua Chukwuma Onwe
Daniel Balsalobre-Lorente
author_facet Tonuchi E. Joseph
Atif Jahanger
Joshua Chukwuma Onwe
Daniel Balsalobre-Lorente
author_sort Tonuchi E. Joseph
collection DOAJ
description Abstract This study examined the interconnectedness and volatility correlation between cryptocurrency and traditional financial markets in the five largest African countries, addressing concerns about potential spillover effects, especially the high volatility and lack of regulation in the cryptocurrency market. The study employed both diagonal BEKK-GARCH and DCC-GARCH to analyze the existence of spillover effects and correlation between both markets. A daily time series dataset from January 1, 2017, to December 31, 2021, was employed to analyze the contagion effect. Our findings reveal a significant spillover effect from cryptocurrency to the African traditional financial market; however, the percentage spillover effect is still low but growing. Specifically, evidence is insufficient to suggest a spillover effect from cryptocurrency to Egypt and Morocco’s financial markets, at least in the short run. Evidence in South Africa, Nigeria, and Kenya indicates a moderate but growing spillover effect from cryptocurrency to the financial market. Similarly, we found no evidence of a spillover effect from the African financial market to the cryptocurrency market. The conditional correlation result from the DCC-GARCH revealed a positive low to moderate correlation between cryptocurrency volatility and the African financial market. Specifically, the DCC-GARCH revealed a greater integration in both markets, especially in the long run. The findings have policy implications for financial regulators concerning the dynamics of both markets and for investors interested in portfolio diversification within the two markets.
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spelling doaj.art-696cf5bef8d7438aae68fd10140077a72024-03-05T16:39:05ZengSpringerOpenFinancial Innovation2199-47302024-01-0110111910.1186/s40854-023-00580-5The implication of cryptocurrency volatility on five largest African financial system stabilityTonuchi E. Joseph0Atif Jahanger1Joshua Chukwuma Onwe2Daniel Balsalobre-Lorente3Department of Statistics, Central Bank of NigeriaInternational Business School, Hainan UniversitySchool of General studies, Federal Polytechnic OhodoDepartment of Applied Economics I, University of Castilla La ManchaAbstract This study examined the interconnectedness and volatility correlation between cryptocurrency and traditional financial markets in the five largest African countries, addressing concerns about potential spillover effects, especially the high volatility and lack of regulation in the cryptocurrency market. The study employed both diagonal BEKK-GARCH and DCC-GARCH to analyze the existence of spillover effects and correlation between both markets. A daily time series dataset from January 1, 2017, to December 31, 2021, was employed to analyze the contagion effect. Our findings reveal a significant spillover effect from cryptocurrency to the African traditional financial market; however, the percentage spillover effect is still low but growing. Specifically, evidence is insufficient to suggest a spillover effect from cryptocurrency to Egypt and Morocco’s financial markets, at least in the short run. Evidence in South Africa, Nigeria, and Kenya indicates a moderate but growing spillover effect from cryptocurrency to the financial market. Similarly, we found no evidence of a spillover effect from the African financial market to the cryptocurrency market. The conditional correlation result from the DCC-GARCH revealed a positive low to moderate correlation between cryptocurrency volatility and the African financial market. Specifically, the DCC-GARCH revealed a greater integration in both markets, especially in the long run. The findings have policy implications for financial regulators concerning the dynamics of both markets and for investors interested in portfolio diversification within the two markets.https://doi.org/10.1186/s40854-023-00580-5African financial marketBEKK-GARCHCryptocurrencyDCC-GARCHVolatility spillover
spellingShingle Tonuchi E. Joseph
Atif Jahanger
Joshua Chukwuma Onwe
Daniel Balsalobre-Lorente
The implication of cryptocurrency volatility on five largest African financial system stability
Financial Innovation
African financial market
BEKK-GARCH
Cryptocurrency
DCC-GARCH
Volatility spillover
title The implication of cryptocurrency volatility on five largest African financial system stability
title_full The implication of cryptocurrency volatility on five largest African financial system stability
title_fullStr The implication of cryptocurrency volatility on five largest African financial system stability
title_full_unstemmed The implication of cryptocurrency volatility on five largest African financial system stability
title_short The implication of cryptocurrency volatility on five largest African financial system stability
title_sort implication of cryptocurrency volatility on five largest african financial system stability
topic African financial market
BEKK-GARCH
Cryptocurrency
DCC-GARCH
Volatility spillover
url https://doi.org/10.1186/s40854-023-00580-5
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