Westerlund, Joakim - In: Journal of Econometrics 185 (2015) 2, pp. 495-509
The current paper considers the asymptotic local power of second-generation panel unit root tests that are robust to the presence of cross-section dependence in the form of common factors. As a basis for our analysis, we take the PANIC approach of Bai and Ng (2004, 2010), which is one of the...