Carrion-i-Silvestre, Josep Lluís; Gadea, María Dolores - In: Economics Letters 120 (2013) 2, pp. 184-187
We show that the use of generalized least squares (GLS-)detrending procedures with bound-specific non-centrality parameter leads to important empirical power gains compared to using the ordinary least squares (OLS-)detrending method when testing the null hypothesis of unit root for bounded...