台灣反傾銷貿易效果之實證分析──產品品質重要嗎？

EMPIRICAL ANALYSIS ON THE TRADE EFFECTS OF ANTIDUMPING MEASURES ON TAIWAN: DOES PRODUCT QUALITY MATTER?

在研究反傾銷貿易效果的實證文獻中，產品品質仍未被討論。本研究以2002–2015年間，87件對台灣廠商課徵反傾銷稅的案件為研究對象，研究台灣廠商面對反傾銷控訴的貿易效果，以及產品異質性對貿易效果的影響。以system GMM的實證結果指出，台灣涉案產品在提控國遭受的貿易破壞效果有限，但對高品質產品則顯著有負面影響。進一步，涉案產品出口至其他國家的貿易轉向及貿易衰退效果很顯著。總的來看，反傾銷措施所造成的總貿易效果是負的，且主要來自於貿易衰退效果。然而，若考慮其他效果，例如品質提升，台灣涉案產品在課稅期間之出口則可能反而是增加的。

Product quality remains undiscussed in the empirical literature on trade effects of antidumping measures. This research analyzes the trade effects of Taiwanese firms and the impact of quality heterogeneity on trade effects for Taiwanese firms by examining 87 cases of antidumping duties imposed from 2002 to 2015. Using the method of the system GMM, the empirical results show that trade destruction in the prosecuted country is insignificant, though it has a significantly negative impact on relatively high-quality products. Furthermore, the trade deflection and trade depression effects of exporting to other countries are significant. In general, the total trade effect caused by antidumping measures is negative, and mainly comes from the effect of trade depression. However, if other factors are considered, such as the effect of product quality improvement, the export of Taiwan's products involved during the antidumping duty period may actually increase.