Asymptotic local power of pooled t‐ratio tests for unit roots in panels with fixed effects

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Incidental Trends and the Power of Panel Unit Root Tests (2007, unknown): “A t-test In a manner similar to Moon and Perron (2005), we can define statistics that are asymptotically equivalent to the Levin et al.”
GMM ESTIMATION FOR DYNAMIC PANELS WITH FIXED EFFECTS AND STRONG INSTRUMENTS AT UNITY (2009, unknown): “On the other hand, while the point optimal test for a unit root has local power in a neighborhood of unity that shrinks at the rate n−1/2T −1 (see Moon and Perron, 2004; Moon, Perron, and Phillips, 2006b), the τ̂0 test has only trivial asymptotic power in n−1/2T −1 neighborhoods and nontrivial…”
The Local Power of the CADF and CIPS Panel Unit Root Tests (2016, background): “…suppose that the data are cross-section independent, and a vast majority of these studies only consider tests based on within pooling, in which the numerator and denominator are summed over the crosssection before the ratio is taken (see, for example, Moon and Perron, 2008; Moon et al., 2007).”
Second Generation Panel Unit Root Tests (2007, unknown): “…Tzavalis (1999) Im, Pesaran and Shin (1997, 2002, 2003) Maddala and Wu (1999) Choi (1999, 2001) 2 - Stationarity tests Hadri (2000) Second Generation Cross-sectional dependencies 1-Factor structure Bai and Ng (2001, 2004) Moon and Perron (2004a) Phillips and Sul (2003a) Pesaran (2003) Choi (2002)”