gains from trade have to say about such arguments? In general, the basic theory of the gains from tradeunfairly benefit its trading partners if its trading partners have a comparative advantage in the goods that the United States currently produces the most of.countries.unfairly benefit its trading partners if its trading partners have an absolute advantage in the goods that the United States currently produces the most of.the United States in terms of decreasing American production or consumption possibilities, and it is impossible for free trade to deliver any unfair benefit to any trading partner.