“…On the other hand, must studies on time series analysis have supported the PBH (Halicioglu and Ketenci, 2017;Wang et. al., 2016;Anwar and Ali, 2015;Cardi and Restout, 2015;Bahmani-Oskooee and Nasir, 2005;Rogoff,1992;Bahmani-Oskooee, 1992;Hsieh, 1982) while few studies rejected the hypothesis (Halicioglu and Ketenci, 2017;Bahmani-Oskooee and Nasir, 2005;Bahmani-Oskooee, 1992). As noted by Bahmani-Oskoee and Gelan (2006) and Bahmani-Oskooee and Nasir (2004) studies on time series data especially in sub-Saharan African countries is rare in number.…”