In the world trading system there has been an increase in unilateral trade and bilateral trade of differentiated products. However, the main trade theories have difficulties providing an explanation for unilateral trade. We show that profit seeking abroad by merchants or countries originates...

Following Smith¡¯s advocacy of free trade and competition, David Ricardo attempts to strengthen his theory of absolute advantage, which excludes from international trade countries which have no advantages over others, by eliminating this weakness. To do so, Ricardo introduces to the economics...

In this paper, a model is set up to determine the size of the wildlife population compatible with the extraction of the maximum output by rural people from natural resources. It is found that when the size of human population increases, to obtain the maximum output of food, the size of wildlife...

This paper assesses the impact of economic globalisation on the South African auto industry. First, a duopoly model of differentiated products is used, which allows the determination of the free trade and protection dividing line. This determines the stay-exit function, which shows the...