“…Later, the aggregate production function was examined in cross-section studies, which considered exports as an additional input to capital and labour (Balassa, 1978 andTyler, 1981;Feder, 1983;Kavoussi, 1984;Ram, 1985;Rana, 1988;Kohli and Singh, 1989;Moschos, 1989;Fosu, 1990;Otani and Villaneuva, 1990;Dodaro, 1991;Esfahani, 1991;Salvatore and Hatcher, 1991;De Gregorio, 1992;Greenaway and Sapsford, 1994;Amirkhalkhali and Dar, 1995;Burney, 1996). Generally, these studies tend to support the view that export growth promotes overall economic growth, however, it is recognised that they do not address the issue of causality, whilst the cross-country regressions provide little insight into the way the various explanatory variables affect growth and the dynamic behaviours within countries (Giles and Williams, 2000).…”