“…Because unit root tests have varying degrees of power, they provide alternative findings, particularly for macroeconomic variables (Chiliba, Alagidede, &Schaling, 2016). As a result, a battery of unit root tests is employed, namely the Augmented Dickey-Fuller (Gujarati and Porter, 2005), Phillips and Perron (PP) (1988), to ascertain the order of integration of various series in the hope of obtaining mutually reinforcing results that will improve the data's efficiency and consistency (Marketa, A. and Darina, 2016).…”