“…According to the related literature, the differences observed in the levels and trends of the relative price of investment goods between countries may be accounted for by differences in economic policies, particularly the trade policy (Cai et al, 2015; Estevadeordal & Taylor, 2013; Johri & Rahman, 2020; Lian et al, 2020) and the fiscal policy (Jones, 1994; Sarel, 1995), disparities in economic structure and industry composition (Samaniego & Sun, 2020), efficiency in producing exportable goods that might be traded for machinery and equipment goods relative to efficiency in other sectors (Hsieh & Klenow, 2007; Lian et al, 2020), price discrimination practices adopted by some exporters (Alfaro & Ahmed, 2010), and distortions linked to corruption, bureaucracy, and institutions (Alejandro & Carlos, 1970; Easterly, 1993; Restuccia & Urrutia, 2001; Schmitz, 2001). A thorough explanation of the sources of differences observed in terms of the RPI levels in Africa as well as their trends goes beyond the scope of this article, needing, therefore, further empirical investigations.…”