What considerations might limit the extent to which the theory of comparative advantage is realistic?

Answer: The theory of relative advantage was initially advanced by the nineteenth century economist David Ricardo as a description for why nations trade with one another.The theory claims which economic well-being is improved if each country’s citizens generate what they have a comparative advantage in generating relative to the citizens of other countries, and after that trade products. Fundamental the theory is the assumptions of free trade among nations and that the factors of production (labor, technology, land, buildings, and capital) are comparatively immobile. To the extent that these types of assumptions do not hold, the theory of comparative advantage will not practically describe international trade.