Reflections on "testing for unit roots in heterogeneous panels"

Kyung So Im, M. Hashem Pesaran, Yongcheol Shin

This article is our personal perspective on the IPS test and the subsequent developments of unit root and cointegration tests in dynamic panels with and without cross-section dependence. In this note, we discuss the main idea behind the test and the publication process that led to Im, Pesaran and Shin (2003).

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Year of publication:	January 2023
Authors:	Im, KyungSo ; Pesaran, M. Hashem ; Shin, Yongcheol
Publisher:	Munich, Germany : CESifo
Subject:	Dickey and Fuller statistic \| stationarity \| panel unit root tests \| prevalence of unit roots \| Einheitswurzeltest \| Unit root test \| Panel \| Panel study \| Theorie \| Theory \| Zeitreihenanalyse \| Time series analysis \| Statistische Methodenlehre \| Statistical theory