Spillovers in Exchange Rates and the Effects of Global Shocks on Emerging Market Currencies

Haakon Kavli and Kevin Kotze

South African Journal of Economics, 2014, vol. 82, issue 2, 209-238

Abstract: This paper provides an investigation into the spillover effects of exchange rate returns and volatility for developed and emerging market currencies, using data from 1997 to 2011. The results suggest that spillovers in exchange rate returns have increased steadily over time, in moderate reaction to economic events. In contrast, spillovers in total observed volatility (measured by squared returns) react more strongly to economic events, and this transmission has remained at a relatively high level since the global financial crisis. Furthermore, over the course of time, global shocks would appear to account for a larger proportion of aggregate exchange rate volatility (and the relative importance of domestic shocks has declined). The paper also considers whether the increase in volatility spillover is due to sudden shocks, or whether it is due to changes in the stochastic trend of the underlying volatility process. The results suggests that in most cases, this increase is due to sudden shocks, however, in certain instances country-specific events may perpetuate changes to the trend of the underlying volatility spillover.

Date: 2014
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