Structural breaks, unit roots and methods for removing the autocorrelation pattern

被引:6
|
作者
Montañés, A [1 ]
Reyes, M [1 ]
机构
[1] Fac Ciencias Economocas & Empresariales, Dept Anal Econ, Zaragoza 50005, Spain
关键词
unit roots; Dickey-Fuller tests; Phillips-Perron tests; structural break;
D O I
10.1016/S0167-7152(00)00023-7
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
This paper examines the asymptotic and finite sample behaviour of the ADF and Phillips-Perron statistics under the presence of a break in the trend function. We prove that the break magnitude affects these two statistics in a similar way, drawing them closer the acceptance zone, the higher the break magnitude. By contrast, the influence of the lag truncation parameter does not have a similar effect on them, being very important for the ADF whilst negligible for the Phillips-Perron statistics. (C) 2000 Elsevier Science B.V. All rights reserved
引用
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页码:401 / 409
页数:9
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