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Method of moment estimation in the COGARCH(1,1) model

S. Haug, C. Klüppelberg, A. Lindner and M. Zapp

Econometrics Journal, 2007, vol. 10, issue 2, 320-341

Abstract: We suggest moment estimators for the parameters of a continuous time GARCH(1,1) process based on equally spaced observations. Using the fact that the increments of the COGARCH(1,1) process are strongly mixing with exponential rate, we show that the resulting estimators are consistent and asymptotically normal. We investigate the empirical quality of our estimators in a simulation study based on the variance gamma driven COGARCH(1,1) model. The estimated volatility with corresponding residual analysis is also presented. Finally, we fit the model to high-frequency data. Copyright Royal Economic Society 2007

Date: 2007
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