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Measuring volatility linkage, clustering and sensitivity to external shocks in Nigerian stock index

Recent events in the global economy have further exposed the fear and uneasiness in the minds of investors around the world. The resort to protectionist policies by nations around the world as reaction to the attempt by US President Donald Trump to use higher tariffs to increase his country's share of global trade has made global investors seek safe havens. This paper measures stock market volatility and linkages among three stock markets. EGARCH and TGARCH models were employed in analysing univariate volatility in the indices, while bivariate GARCH (diagonal BEKK) was employed in measuring re…

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