Thus, in - depth research on the theory and practice of tariff concession is great significative in reality.
因而, 深入研究关税减让的理论与实践问题具有重大的现实意义.
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Multilateral Tariff Negotiation and Multilateral Tariff Concession - Are the forming of custom unions always increases members'welfare?
多边关税谈判与关税减让 -- 关税同盟的缔结一定会提高成员国的谈判地位 吗 ?
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