Testing for changes in polynomial regression
Testing for changes in polynomial regression
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DOI:
10.3150/08-bej122
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发表时间:
2008-08
期刊:
影响因子:
1.5
通讯作者:
Alexander Aue;Lajos Horv'ath;Marie Huvskov'a;P. Kokoszka
中科院分区:
文献类型:
--
作者:
Alexander Aue;Lajos Horv'ath;Marie Huvskov'a;P. Kokoszka
We consider a nonlinear polynomial regression model in which we wish to test the null hypothesis of structural stability in the regression parameters against the alternative of a break at an unknown time. We derive the extreme value distribution of a maximum-type test statistic which is asymptotically equivalent to the maximally selected likelihood ratio. The resulting test is easy to apply and has good size and power, even in small samples.