The Performance of Panel Unit Root and Stationarity Tests: Results from a Large Scale Simulation Study

Jaroslava Hlouskova and Martin Wagner

No ECO2005/05, Economics Working Papers from European University Institute

Abstract: This paper presents results concerning the size and power of first generation panel unit root and stationarity tests obtained from a large scale simulation study, with in total about 290 million test statistics computed. The tests developed in the following papers are included: Levin, Lin and Chu (2002), Harris and Tzavalis (1999), Breitung (2000), Im, Pesaran and Shin (1997 and 2003), Maddala and Wu (1999), Hadri (2000), and Hadri and Larsson (2005). Our simulation set-up is designed to address i.a. the following issues. First, we assess the performance as a function of the time and the cross-section dimension. Second, we analyze the impact of positive MA roots on the test performance. Third, we investigate the power of the panel unit root tests (and the size of the stationarity tests) for a variety of first order autoregressive coefficients. Fourth, we consider both of the two usual specifications of deterministic variables in the unit root literature.

Keywords: Panel Unit Root Test; Panel Stationarity Test; Size; Power; Simulation Study (search for similar items in EconPapers)
JEL-codes: C12 C15 C23 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-ecm and nep-ets
Date: 2005
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Working Paper: The Performance of Panel Unit Root and Stationarity Tests: Results from a Large Scale Simulation Study (2005)
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