隨著多國籍企業在海外間密切的合作與發展，國與國之間貿易往來已變成維持國家經濟成長的重要指標。本研究主要討論多國籍企業特性對國際貿易績效之影響，並加以研究當採用企業內貿易效果後，是否對國際績效有更顯著之影響。自變數設定為企業內貿易效果(輸出代替效果、逆輸入效果、輸出誘發效果、輸入轉換效果)，應變數設定為貿易競爭力(母子公司貿易總額上升、市場佔有率擴大、外來直接投資增加)。另外更以兩岸經濟合作架構協議，簡稱ECFA為其干擾變數，來加以了解ECFA之關稅降低或是減免的影響之下是否能更加速企業內貿易效果對貿易競爭力之影響。實證結果證明企業內貿易效果對於貿易競爭力有正向之關係。ECFA之開放更能帶動此正向關係之影響力。建議後續學者能以更長期為觀測基準，加以探究此研究架構。
Along with the multi-nationality enterprise at the overseas between the close cooperation and the development, between the country and the country the trade turned the important target which the maintenance state economy grows. This re-search mainly discusses the multi-nationality enterprise characteristic to influence of the international trade achievements, and studies, when after using in the enterprise the trade effect, whether to have a more remarkable influence to the international achievements. The independent variable hypothesis the trade effect (output replaces effect, counter input effect, output suggestion effect, input conversion effect) for the enterprise, the dependent variable hypothesis for the trade competitive power (moth-er and child company total volume of trade rise, market share expands, external di-rect investment to increase). Moreover take ECFA as its disturbance variable, comes to understand of lowering of custom duty ECFA perhaps reduces whether under the influence can accelerate in the enterprise the trade effect to influence of the trade competitive power.
The real diagnosis result proved that in the enterprise the trade effect has the forward relations regarding the trade competitive power. Opening of the ECFA can lead influence of this forward relational. Suggested that the following scholar can take for a long time as the observation datum, inquires into this research construction.
