The basic message of is that potential world production is greater with unrestricted free trade than it is with restricted trade. multiple choice zero-sum game theory theory of comparative advantage mercantilist theory absolute advantage theory rational choice theory

Lets talk about all the terms. First of all, zero-sum game theory and rational choice theory are mathematical theories that are used to analyze financial phenomena. The first one is against this view and the second one is a general framework that does not say what its stance is; it is certainly not the basic message of rational choice theory. The mercantilist theory is a theory that favors trade restrictions, so this is not the right choice. THe theory of absolute and comparative advantage are related; the first one says that only a country can make a product in a good way, while the second theory claims that eeach country should specialize in what it is best at producing. The comparative advantage theory makes the case that if there are many goods, one should not need to bother to produce those which he is bad at producing; he should produce a surplus of his specialty and then trade with others (and their specialty products). Thus, comparative advantage is the correct choice.