Acountry that has should export whatever it is most efficient at producing. 1. an absolute advantage 2. a comparative advantage 3. a high demand 4. a low supply a country that has should export goods and services that have a lower opportunity cost of production. 1. an absolute advantage 2. a comparative advantage 3. a high demand 4. a low supply as a result, countries should producing the goods and services for which they have the lowest 1a. decrease 2a. ignore 3a. specialize in 1b. average cost 2b. marginal cost 3b. opportunity cost