“…In the case of the first component of adding volume, the argument holds that trade liberalisation produces additional trade volumes. This argument is supported by a substantial literature and empirical evidence presented by numerous authors, dating back to Keesing (1967) and, in more recent times, inter alia, Giles and Williams (2000a;and 2000b) Samuelson and Nordhaus (2004), Awokuse (2008), Chan and Dang (2010) and Nain and Ahmad (2010), to mention a few.…”