TY - BOOK AU - Marsh,Patrick AU - Müller,Ulrich K. AU - Breitung,Jörg AU - Burridge,Peter AU - Xiao,Zhijie TI - Commentaries on “Unit root testing in practice: dealing with uncertainty over the trend and initial condition,” by David I. Harvey, Stephen J. Leybourne, and A.M. Robert Taylor SN - 02664666 AV - HB139.T52 ECO PY - 2009/// CY - Cambridge PB - Cambridge University Press KW - Commentary N2 - Harvey, Leybourne, and Taylor focuses on issues related to trend and initial condition uncertainty. Initial condition is not observable or estimable in practice, and so it is impossible to directly use information about initial condition. However, initial condition uncertainty does affect the selection of a more efficient (say) detrending procedure. For this reason, researchers want to take into account initial condition uncertainty when selecting a detrending method UR - https://doi.org/10.1017/S0266466608090208 ER -