從1980年以來，反傾銷制度已逐漸為各國所普遍採用，以對抗國際間之不公平貿易行為；另一方面，進口國政府亦常利用反傾銷法規範的「灰色地帶」以保護國內產業。 本研究利用文獻回顧法探討政治與經濟因素在反傾銷裁定的決策上所扮演的角色，主要結論如下：經濟因素外，影響傾銷認定的重要政治因素歸納有二：利益團體的遊說及輸出國對其貨品遭反傾銷裁定報復的可能。 最後，對於反傾銷制度的健全運作，作者提出了一些建議。

　　　　　Because nations can apply antidumping duty not only to offest international unfair trade practice, but also to circumvent the regulations of GATT and WTO in order to protect domestic industry. Antidumping scheme has gradually gained its popularity since 1980. Literature review and an economic model are used to explore important political and economic determinants on the ruling of antidumping duty. Besides economic factors, interest groups and trade retaliation are two primary political elements that affect decision-making of levying antidumping duty. The author proposes some suggestions that should be helpful to improve the soundness of antidumping scheme.