Answer:
If there is a point on which most economists agree, it is that trade among nations makes the world better off. Yet international trade can be one of the most contentious of political issues, both domestically and between governments.
When a firm or an individual buys a good or a service produced more cheaply abroad, living standards in both countries increase. There are other reasons consumers and firms buy abroad that also make them better off—the product may better fit their needs than similar domestic offerings or it may not be available domestically. In any case, the foreign producer also benefits by making more sales than it could selling solely in its own market and by earning foreign exchange (currency) that can be used by itself or others in the country to purchase foreign-made products.
Still, even if societies as a whole gain when countries trade, not every individual or company is better off. When a firm buys a foreign product because it is cheaper, it benefits—but the (more costly) domestic producer loses a sale. Usually, however, the buyer gains more than the domestic seller loses. Except in cases in which the costs of production do not include such social costs as pollution, the world is better off when countries import products that are produced more efficiently in other countries.
Those who perceive themselves to be affected adversely by foreign competition have long opposed international trade. Soon after economists such as Adam Smith and David Ricardo established the economic basis for free trade, British historian Thomas B. Macaulay was observing the practical problems governments face in deciding whether to embrace the concept: “Free trade, one of the greatest blessings which a government can confer on a people, is in almost every country unpopular.”
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