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Modelling multivariate volatilities via conditionally uncorrelated components

Fan, Jianqing and Wang, Mingjin and Yao, Qiwei (2008) Modelling multivariate volatilities via conditionally uncorrelated components. Journal of the Royal Statistical Society. Series B: Statistical Methodology, 70 (4). pp. 679-702. ISSN 1369-7412

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Identification Number: 10.1111/j.1467-9868.2008.00654.x


We propose to model multivariate volatility processes on the basis of the newly defined conditionally uncorrelated components (CUCs). This model represents a parsimonious representation for matrix-valued processes. It is flexible in the sense that each CUC may be fitted separately with any appropriate univariate volatility model. Computationally it splits one high dimensional optimization problem into several lower dimensional subproblems. Consistency for the estimated CUCs has been established. A bootstrap method is proposed for testing the existence of CUCs. The methodology proposed is illustrated with both simulated and real data sets.

Item Type: Article
Official URL:
Additional Information: © 2008 The Royal Statistical Society
Subjects: H Social Sciences > HA Statistics
Sets: Collections > Economists Online
Departments > Statistics
Date Deposited: 18 Feb 2009 16:27
Last Modified: 13 Oct 2017 15:55
Projects: DMS-0355179, DMS-0704337, 10628104, GR/R97436, 70201007, GR/R97436, EP/C549058
Funders: National Science Foundation, Chinese National Science Foundation, Engineering and Physical Sciences Research Council

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