The impact of sudden changes on the persistence of volatility: evidence from the BRIC countries
AbstractThis article analyses sudden changes of volatility in the stock markets of the BRIC countries (Brazil, Russia, India and China) using the iterated cumulative sums of squares algorithm for the period 1990 to 2007 and examines their impacts on the persistence of volatility. The results show that when endogenously determined sudden shifts in variance are taken into account in the Generalized Autoregressive Conditional Heteroscedasticity (GARCH) model, the estimated persistence in return volatility is reduced significantly in every return series. These results suggest that the findings of previous studies could have overestimated the degree of the persistence of volatility existing in the financial time series. These results have important policy implications for the financial market participants and policy makers.
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Bibliographic InfoArticle provided by Taylor & Francis Journals in its journal Applied Economics Letters.
Volume (Year): 16 (2009)
Issue (Month): 7 ()
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- Todea, Alexandru & Platon, Diana, 2012. "Sudden Changes In Volatility In Central And Eastern Europe Foreign Exchange Markets," Journal for Economic Forecasting, Institute for Economic Forecasting, vol. 0(2), pages 38-51, June.
- Saleem, Kashif & Vaihekoski, Mika, 2010. "Time-varying global and local sources of market and currency risks in Russian stock market," International Review of Economics & Finance, Elsevier, vol. 19(4), pages 686-697, October.
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