Answer:
law of comparative advantage.
Step-by-step explanation:
Nations will be able to produce a larger joint output and realize mutual gains when each specializes in the production of those items for which it is a low-opportunity cost producer and trades for those things that it could produce only at a high cost. This statement best describes the law of comparative advantage.
Comparative advantage can be defined as ability of a country or business entity to produce goods and services at a lower opportunity cost than others such as their trade partners. Hence, the most important benefit of the comparative advantage is that, it gives a country or business entity the ability to sell their finished goods and services at a lower price in comparison with its close competitors and consequently, resulting in a stronger sales margins.