Dynamic Models for Volatility and Heavy Tails

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Dynamic Models for Volatility and Heavy Tails

By Andrew C. Harvey

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The volatility of financial returns changes over time and, for the last thirty years, Generalized Autoregressive Conditional Heteroscedasticity (GARCH) models have provided the principal means of analyzing, modeling and monitoring such changes. Taking into account that financial returns typically exhibit heavy tails - that is, extreme values can occur from time to time - Andrew Harvey's new book shows how a small but radical change in the way GARCH models are formulated leads to a resolution of many of the theoretical problems inherent in the statistical theory. The approach can also be applied to other aspects of volatility. The more general class of Dynamic Conditional Score models extends to robust modeling of outliers in the levels of time series and to the treatment of time-varying relationships. The statistical theory draws on basic principles of maximum likelihood estimation and, by doing so, leads to an elegant and unified treatment of nonlinear time-series modeling.

Subject: Business & Economics -> Economics -> Forecasting/Econometrics

Dynamic Models for Volatility and Heavy Tails
With Applications to Financial and Economic Time Series
1st edition
Publisher: Cambridge University Press 4/22/13
Imprint: Cambridge University Press
Language: English

ISBN 10: 1107327121
ISBN 13: 9781107327122
Print ISBN: 9781107034723

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