This paper asks whether net trade in the Middle East and North Africa
(MENA) can be explained by differences in comparative costs and in the
exploitation of scale economies. Based on a sample of six countries,
it is shown that factor proportions do not significantly affect net tr
ade. In an analysis based on a sample of three countries, we are also
able to incorporate technical differences and differences in scale eco
nomies. We find no support of these variables significantly affecting
net trade either. Therefore, we are fairly confident in drawing the co
nclusion that for our country sample, net trade does not seem to be ex
plained by comparative costs, technical differences, or scale economie
s. This leads us to conclude that measures undertaken to increase trad
e between MENA countries without simultaneously removing domestic dist
ortions may not be welfare improving.