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Volatility Spillovers between the Equity Market and Foreign Exchange Market in South Africa in the 1995‐2010 Period

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South African Journal of Economics

Published online on

Abstract

This paper attempts to assess the extent of volatility spillovers between the equity market and the foreign exchange market in South Africa. Multistep family of the General Autoregressive Conditional Heteroskedasticity models are used for this end, whereby volatility shocks obtained from the mean equation estimation in each market are included in the conditional volatility of the other market, respectively. The paper selects the appropriate volatility models for each market following criteria such as covariance stationarity, persistence in variance and leverage effects. The finding of the paper indicates that there is a unidirectional relationship in terms of volatility spillovers from the equity market to the foreign exchange market. The paper supports the view that the extent of foreign participation in the South African equity market possibly contributes to this phenomenon.