Apr 09 2021 Mohsen Bahmani-Oskooee , Tsangyao Chang , Zahra Elmi and Omid Ranjbar   Testing the degree of persistence of Covid-19 using Fourier quantile unit root test   Abstract  Contact Information  Citation  Full Text  -  Note   May 12 2018 Yifei Cai   Testing the Fisher Effect in the US   Abstract  Contact Information  Citation  Full Text  -  Preliminary Result   Nov 26 2016 Mohsen Bahmani-Oskooee , Tsangyao Chang , Tsung-hsien Chen and Han-wen Tzeng   "Revisiting the efficient market hypothesis in transition countries using quantile unit root test."   Abstract  Contact Information  Citation  Full Text  -  Note