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Asymmetric COGARCH processes

Published online by Cambridge University Press:  30 March 2016

Anita Behme
Affiliation:
Center for Mathematical Sciences, Technische Universität München, 85748 Garching, Boltzmannstrasse 3, Germany. Email address: behme@ma.tum.de.
Claudia Klüppelberg
Affiliation:
Center for Mathematical Sciences, Technische Universität München, 85748 Garching, Boltzmannstrasse 3, Germany. Email address: cklu@ma.tum.de.
Kathrin Mayr
Affiliation:
Center for Mathematical Sciences, Technische Universität München, 85748 Garching, Boltzmannstrasse 3, Germany.
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Abstract

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Financial data are as a rule asymmetric, although most econometric models are symmetric. This applies also to continuous-time models for high-frequency and irregularly spaced data. We discuss some asymmetric versions of the continuous-time GARCH model, concentrating then on the GJR-COGARCH model. We calculate higher-order moments and extend the first-jump approximation. These results are prerequisites for moment estimation and pseudo maximum likelihood estimation of the GJR-COGARCH model parameters, respectively, which we derive in detail.

Information

Type
Part 5. Finance and econometrics
Copyright
Copyright © Applied Probability Trust 2014