Burridge, P.; Gjorstrup, F.; Robert Taylor, A. M. - Department of Economics, City University - 2004
Recent experimental results presented in Burridge and Taylor (2001a,b, and 2003) show that, as usually implemented, the Hylleberg et al. (1990) seasonal unit root tests can be rather liberal, with true level often substantially higher than nominal level. This effect is due to the presence of any...