Monitoring procedures for strict stationarity based on the multivariate characteristic function

被引:3
|
作者
Lee, Sangyeol [1 ]
Meintanis, Simos G. [2 ,3 ]
Pretorius, Charl [3 ,4 ]
机构
[1] Seoul Natl Univ, Dept Stat, Seoul, South Korea
[2] Natl & Kapodistrian Univ Athens, Dept Econ, Athens, Greece
[3] North West Univ, Pure & Appl Analyt, Potchefstroom, South Africa
[4] Charles Univ Prague, Dept Probabil & Math Stat, Prague, Czech Republic
基金
新加坡国家研究基金会;
关键词
Block bootstrap; Change-point; Empirical characteristic function; Strict stationarity; CHANGE-POINT ANALYSIS; TIME-SERIES; 2ND-ORDER STATIONARITY; PARTIAL-SUMS; ROBUST; TESTS; COVARIANCE; VARIANCE;
D O I
10.1016/j.jmva.2021.104892
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
We consider model-free monitoring procedures for strict stationarity of a given time series. The new criteria are formulated as L2-type statistics incorporating the multivariate empirical characteristic function. Asymptotic results are obtained for the closed-end scenario and Monte Carlo results are presented. The new methods are also employed in order to test for possible stationarity breaks in time-series data from the financial sector. (C) 2021 Elsevier Inc. All rights reserved.
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页数:20
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