Through the attempt to clarify justifiable economic circumstances where a policy of globalization and/or a policy of national isolation is proven valid, the author revealed in this thesis that there are two such econo...Through the attempt to clarify justifiable economic circumstances where a policy of globalization and/or a policy of national isolation is proven valid, the author revealed in this thesis that there are two such economic phases： An economy where the theory of comparative advantage, proposed by David Ricardo, is applicable, and an economy where the theory is not applicable. The author applied his original approach to prove the validity of Ricardo＇s comparative advantage theory, and found that the theory can be justified only when a macro economy is in the primal problem phase, where a policy of globalization is effective. It is a necessary and sufficient condition for the theory to be valid. In other words, Ricardo＇s theory of comparative advantage is not applicable when a macro economy is in the dual problem phase, where a policy of national isolation, instead of that of globalization, is valid. The primal problem phase and the dual problem phase of a macro economy, called in this thesis by the author, are a version of an expression quite common in OR （operations research）.展开更多
文摘Through the attempt to clarify justifiable economic circumstances where a policy of globalization and/or a policy of national isolation is proven valid, the author revealed in this thesis that there are two such economic phases： An economy where the theory of comparative advantage, proposed by David Ricardo, is applicable, and an economy where the theory is not applicable. The author applied his original approach to prove the validity of Ricardo＇s comparative advantage theory, and found that the theory can be justified only when a macro economy is in the primal problem phase, where a policy of globalization is effective. It is a necessary and sufficient condition for the theory to be valid. In other words, Ricardo＇s theory of comparative advantage is not applicable when a macro economy is in the dual problem phase, where a policy of national isolation, instead of that of globalization, is valid. The primal problem phase and the dual problem phase of a macro economy, called in this thesis by the author, are a version of an expression quite common in OR （operations research）.
