Contributions to Static and Time-varying Copula-based Modeling of Multivariate Association: With Applications to Financial Time-Series - Softcover

Ruppert, Martin

 
9783844101201: Contributions to Static and Time-varying Copula-based Modeling of Multivariate Association: With Applications to Financial Time-Series
Softcover
ISBN 10: 3844101209 ISBN 13: 9783844101201
Publisher: Josef Eul Verlag Gmbh, 2012

Synopsis

Putting a particular emphasis on nonparametric methods that rely on modern empirical process techniques, the author contributes to the theory of static and time-varying stochastic models for multivariate association based on the concept of copulas. These functions enable a profound understanding of multivariate association, which is pivotal for judging whether a large set of risky assets entails diversification effects or aggravates risk from an entrepreneurial point of view. Since serial dependence is a stylized fact of financial time series, an asymptotic theory for estimating the structure of association in this context is developed under weak assumptions. A new measure of multivariate association, based on a notion of distance to stochastic independence, is introduced. Asymptotic results as well as hypothesis tests are established which are directly applicable to important types of multivariate financial time series. To ensure that risk management properly captures the current structure of association, it is crucial to assess the constancy of the structure. Therefore, nonparametric tests for a constant copula with either a specified or unspecified change point (candidate) are derived. The thesis concludes with a study of characterizations of association between non-continuous random variables.

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About the Author

Martin Ruppert, born in Worms, Germany, in 1982, holds a 2007 degree in Mathematics with a minor in Business Administration from the Technical University of Darmstadt. In 2011, he completed his doctoral studies at the Graduate School of Risk Management and the Department of Economic and Social Statistics at the University of Cologne. He has written articles on dependence modeling, and has given presentations on this subject at several conferences.

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Publisher
Josef Eul Verlag Gmbh
Publication date
2012
Language
English
ISBN 10 
3844101209
ISBN 13 
9783844101201
Binding
Paperback
Number of pages
176