A combined SR-CUSUM procedure for detecting common changes in panel data

Yanhong Wu

Communications in Statistics - Theory and Methods, 2019, vol. 48, issue 17, 4302-4319

Abstract: A procedure based on the sum of N Shiryayev–Roberts processes is proposed to detect common changes in panel data and shown to perform better for small portions of changed panels. The change-point for each panel is estimated by using the CUSUM process calculated in parallel. The changed panels are isolated by using the scores formed by the post-change parameter estimations and the common change point is then estimated from the isolated changed panels. A real example is used for illustration. An adaptive detection procedures is also proposed when the unknown post-change parameters are estimated adaptively in each panel.

Date: 2019
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DOI: 10.1080/03610926.2018.1494285

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