Trade between nations can be mutually beneficial if one country has a comparative advantage.
The model of comparative advantage is one of the basic concepts that underlies the theory of international trade and shows that countries tend to specialize in the production and export of those goods that they manufacture at a relatively lower cost than the rest of the world.
Those that are comparatively more efficient than others and that tend to import goods in which they are more inefficient and therefore produce with costs that are comparatively higher than the rest of the world.
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