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Returns Correlation Structure and Volatility Spillovers Among the Major African Stock Markets

Tinashe Harry Dumile Kambadza and Zivanemoyo Chinzara
Publication date: 
July 2012
The paper analyses the structure of returns comovements and the volatility spillovers among the African stock markets using daily data for the period 2000-2010. We particularly focus on two issues: whether the stock markets of countries with close trading and financial links are more sychronised, and whether the financial crises influences volatility spillovers. Econometric models used include the Factor Analysis (FA), the Vector Autoregressive (VAR) and the GARCH. Our findings suggest that linkages among the African stock markets only exist along regional blocs. South Africa is found to be both the most dominant and most endogenous stock market. Most of the markets exhibit evidence of asymmetry and persistence in volatility. The results also show that it is important to account for structural change in volatility during financial crises when modelling volatility. We outline the investment and policy implications of the findings.
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