Participation in international trade makes it possible to concentrate all its resources on the production of the goods which a given country can produce in big tits at school efficient way. An absolute advantage means that a given country can produce goods more effeciently than any other country in the world. A comparative advantage means that the goods of one ton of copper costs one hundread less than in other country. International trade may be defined as trade that takes place between partners from different places. Back to big tits at school.