Testing fractional unit roots with non-linear smooth break approximations using Fourier functions.
Autor: Gil Alana, Luis A.; O.S., Yaya
Resumen: In this paper, we present a testing procedure for fractional orders of integration in the context of non-linear terms approximated by Fourier functions. The test statistic has an asymptotic standard normal distribution and several Monte Carlo experiments conducted in the paper show that it performs well in finite samples. Various applications using real life time series, such as US unemployment rates, US GNP and Purchasing Power Parity (PPP) of G7 countries are presented at the end of the paper.
Identificador universal: http://hdl.handle.net/10641/2160
Fecha: 2020
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