Given the task definition and input, reply with output. In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

This concept was first described by Robert Torrens in an 1815 essay on the Corn Laws, but it is most commonly attributed to David Ricardo, who explained it in On the Principles of Political Economy and Taxation. It allows specialization in production, and it allows countries to consume beyond their production possibility frontiers. According to this theory, a country should export (*) goods which it can produce at a low opportunity cost, and import goods which other nations can produce at a lower opportunity cost than its own. FTP, name this economics principle which states that a country can still benefit from trade even if it doesn't have an absolute advantage in the production of any good.
Social Science