“…an appreciated real exchange rates. For instance, a) Warner (1995) and(2001) show, in a cross-section of countries during 1970-90, that a 10% increase in the ratio of natural resource exports to GDP was associated with reduced manufactured export growth, b) Rodrik (2008) finds positive effects of a devaluation on the relative size of the tradable goods sector, especially those related to industrial activities, c) Rajan and Subramanian (2011) add that the excess appreciation, the appreciation that is over and above that suggested by the Balassa-Samuelson effect, may represent the Dutch disease channel through which aid influences the manufacturing sector, d) Araujo et al (2021) note that in the least developed countries, a depreciation has a positive relationship with the value added of the manufacturing sector and that the effects of real exchange rates on growth operate, at least in part, through changes associated with the relative size of the tradable goods sector, and Balassa (1964), Samuelson (1964), Corden (1994), De Gregorio andWolf (1994), Connolly and Deveraux (1995), García (1999), Montiel (1999) and, Cerda (2001), Alberola (2003), Mahbub Morshed and Turnovsky (2004), Galstyan and Lane (2009), Rodrik (2008), Soto and Elbadawi (2008) TT Salter (1959), Edwards (1986), Fardmanesh (1990), Devarajan et al (1991), Devarajan (1999), Connolly and Deveraux (1995), García (1999), Montiel (1999) and (2011), Cerda (2001), Soto and Elbadawi (2008) Salter (1959), Krugman (1988), Edwards (1989), Devarajan et al (1991),…”