Modelling stochastic volatility in asset returns using fractionally integrated semiparametric techniques
This study estimates the order of integration in the volatility process of several exchange rates and stock returns using fractionally integrated semiparametric techniques, namely a local Whittle semiparametric estimator. The results suggest that all series can be well described in terms of I ( d ) statistical models, with values of d higher than 0, indicating long-memory behaviour.
Year of publication: |
2006
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Authors: | Caporale, Guglielmo Maria ; Gil-Alana, Luis A. |
Published in: |
Applied Financial Economics Letters. - Taylor and Francis Journals, ISSN 1744-6546. - Vol. 2.2006, 1, p. 9-12
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Publisher: |
Taylor and Francis Journals |
Saved in:
freely available
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