We propose the Gaussian quasi-maximum likelihood estimator (QMLE) to detect and locate multiple volatility shifts. Our Gaussian QMLE is shown to be consistent under suitable conditions and the rate of convergence is provided. It is also shown that the binary segmentation procedure provides a consistent estimation for the number of volatility shifts. (C) 2013 Elsevier B.V. All rights reserved.
机构:
Hubei Engn Univ, Sch Math & Stat, Xiaogan, Peoples R China
Univ Chinese Acad Sci, Acad Math & Syst Sci, Beijing, Peoples R ChinaHubei Engn Univ, Sch Math & Stat, Xiaogan, Peoples R China
Pan, Baoguo
Chen, Min
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机构:
Univ Chinese Acad Sci, Acad Math & Syst Sci, Beijing, Peoples R China
Capital Univ Econ & Finance, Sch Stat, Beijing, Peoples R ChinaHubei Engn Univ, Sch Math & Stat, Xiaogan, Peoples R China