Title: Exponential Conditional Volatility Models
Authors: Harvey, Andrew
Keywords: Duration models
gamma distribution
general error distribution
heteroskedasticity
leverage
score
Student's t
Issue Date: 24-Aug-2010
Publisher: Faculty of Economics
Series/Report no.: CWPE
1040
Abstract: The asymptotic distribution of maximum likelihood estimators is derived for a class of exponential generalized autoregressive conditional heteroskedasticity (EGARCH) models. The result carries over to models for duration and realised volatility that use an exponential link function. A key feature of the model formulation is that the dynamics are driven by the score.
URI: http://www.dspace.cam.ac.uk/handle/1810/242065
Appears in Collections:Cambridge Working Papers in Economics

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