comparative advantage theory in a sentence

1. Investigations into real world trading patterns have produced a number of results that do not match the expectations of comparative advantage theories.
2. Samuelson said he was merely " interpreting fully and correctly Ricardoian comparative advantage theory . " That interpretation, he insists, includes some " important qualifications " to the arguments of globalization's cheerleaders.
3. Hahnel acknowledged core insights within comparative advantage theory, noting that " if opportunity costs of producing goods are different in different countries there are potential gains from specialization and trade . " However, he explained that the potential gains are realized only under specific conditions, and expounded on the many real world factors that can account for significant efficiency losses.
4. In particular, when the volume of intra-industry trade ( IIT ) between countries grows ( i . e . the same kinds of products are both imported and exported by a country ), and when different branches of the same multinational import and export between countries with their own internal price regime, international comparative advantage theories of the Ricardian type do not apply.
5. It's difficult to find comparative advantage theory in a sentence.