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Filtered log-periodogram regression of long memory processes
被引:3
|作者:
Feng Y.
[1
]
Beran J.
[2
]
机构:
[1] Faculty of Business Administration and Economics, University of Paderborn, Paderborn
[2] Department of Mathematics and Statistics, University of Konstanz, Konstanz
关键词:
Filtering;
Fractional differencing parameter;
Local pre-whitening;
Log-periodogram regression;
Long memory;
D O I:
10.1080/15598608.2009.10411959
中图分类号:
学科分类号:
摘要:
Filtered log-periodogram regression estimation of the fractional differencing parameter d is consid16 ered. Asymptotic properties are derived and the effect of filtering on dˆ is investigated. It is shown that the estimator by Geweke and Porter-Hudak (1983) can be improved significantly using a simple family of filters. The essential improvement is based on a binary decision that is asymptotically correct with probability one. The idea is closely related to the well known technique of pre-whitening. © 2009 Taylor & Francis Group, LLC. All rights reserved.
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页码:777 / 793
页数:16
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