The theory of comparative cost advantage is associated with

The theory of comparative cost advantage is associated with David Ricardo, a British economist who lived in the late 18th and early 19th centuries. The theory explains that countries can benefit from trading with each other by specializing in the production of goods and services that they can produce at a lower opportunity cost, and then trading with other countries for goods and services that they cannot produce as efficiently. For example, if Country A can produce both wheat and cotton, but it can produce more wheat than cotton relative to Country B, which can produce both wheat and cotton but can produce more cotton than wheat relative to Country A, then it makes sense for Country A to specialize in producing wheat and Country B to specialize in producing cotton. By doing so, both countries can then trade with each other, with Country A exporting wheat to Country B in exchange for cotton, and vice versa. This way, both countries can increase their overall economic output and welfare by producing and consuming more of the goods and services that they are relatively more efficient at producing, thanks to the gains from trade.