“…What drives the (geographic) clustering of trading nations? From the literature that will be discussed below, it can be argued that regional clusters exist due to forces of natural and institutional regionalisation (Andresen, 2009a;2009b;Glenn, 2008;MacLeod and Jones, 2007;Poon, 1997a;1997b;Poon and Pandit, 1996;Poon et al, 2000).…”