本研究的主要目的之一在探討臺灣企業在海西經濟區的經營績效，受到哪些關鍵因素的影響。其中有許多關鍵成功因素，包含區位選擇、投資地及出口地區的經濟環境、本地及出口地之市場景氣都會影響臺商在大陸的投資績效。

本研究另外一個探討的重點為了解臺商區位選擇的關鍵影響因素，本研究之研究期間為2004年到2008年間，主要建構了三個模型：績效影響因素模型、區位選擇模型、兩者之聯立方程式模型。

在實證研究之後，本研究的研究成果包含：(1) 在影響績效的關鍵因素模型中，本研究發現區位選擇確實是顯著的與臺灣企業之績效呈現正相關；(2) 在區位選擇模型中，本研究證實績效顯著的影響區位選擇，並且為正相關；(3) 在聯立方程式模型中，證實績效與區位選擇互相影響，且互為正相關。

由於過去有關績效及區位選擇分析的相關文獻並未探討特定一經濟區的特性，因此本研究希望能以此分析結果做為未來特定區位相關研究的參考，並提供政府政策實施及企業投資方案擬定的基準。

The major purpose of this study was to estimate the key factors of the investment performance in The Economic Zone on the West Coast of the Taiwan Straits (henceforth abbreviated as WTSEZ). There were many factors influencing performance such like location selection, economy environment, and market factors.

The other purpose was to determine the key factors of location selection. The study period was ranged from 2004 to 2008 and established three empirical models: the performance factor model, location selection model, and the simultaneous equation model. Major findings of this study included: (1) In the performance factor model, this study discovered that the location was one of the important factors influencing Taiwanese enterprises’ performance. (2) In the firms’ location selection model, performance also served as a significant factor. (3)In the simultaneous equation model, this study stated such relationship between two major variables, and the enterprises earned more profit after the implementation of The Economic Zone on the West Coast of the Taiwan Straits started.

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