

Author: Wang Yi-Hsien
Publisher: Taylor & Francis Ltd
ISSN: 0020-7160
Source: International Journal of Computer Mathematics, Vol.85, Iss.11, 2008-11, pp. : 1697-1707
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Abstract
This study presents a new hybrid model that combines the grey forecasting model with the GARCH to improve the variance forecasting ability in variance as compared to the traditional GARCH. A range-based measure of ex post volatility is employed as a proxy for the unobservable volatility process in evaluating the forecasting ability due to true underlying volatility process not being observed. Overall, the results show that the new hybrid model can enhance the volatility forecasting ability of the traditional GARCH.
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