本研究之主要目的探討高科技產業赴中國大陸投資對台灣經濟之影響，所探討的變數包括國內資本形成、就業人口、貿易收支與國民生產毛額。綜合本文之實證研究結果，本研究針對高科技產業投資中國大陸對台灣重要經濟變數影響之各項結論可分述如下：
（一）國內資本形成方面
　　我國高科技產業赴中國大陸投資對國內資本形成方面的影響呈現無顯著性負向影響。顯示近年來高科技業者赴中國大陸投資設廠，並不會顯著地減少國內資本形成，可能是業者為了利用中國大陸廉價勞力、原料或其他生產資源，或是為了接近消費市場，以把握市場先機等理由，當高科技產業在國內所減少的投資，一時無法為其他產業所得增加所彌補時，國內資本形成將會有減少的現象。
（二）就業人口方面
　　我國高科技產業赴中國大陸投資對國內就業為無顯著性負向影響，表示國內高科技產業將生產線外移，導致台灣部分的勞工失業，但由於赴大陸投資對在台灣本島增加另一些人才的需求，所增加的就業機會是行銷、財務、策略規劃與研發人員，而減少的就業機會則是生產線上的勞工人員，所以，高科技產業赴中國大陸投資所引起的就業機會減少並未給國內帶來顯著性負面的影響，而是配合產業升級或產業結構轉變之自然結果。
（三）貿易收支方面
　　依本研究實證結果發現，高科技產業赴中國大陸投資額對對中國大陸出口額無顯著性正向的影響，表示赴中國大陸投資增加，長期而言會帶動國內出口，主要可能是因為台灣海外的子公司仍以台灣母公司為其原料、零組件及機器設備的主要來源，所以，多能帶動海外投資後的國內出口。
（四）國民生產毛額方面
　　高科技產業赴中國大陸投資額對國民生產毛額有正向影響，但不顯著，這可能是本研究以寄資料做實證研究，而採用季資料在反應實際變動上不夠迅速有效，間接導致進行二階段最小平方法後，其實證結果並無任一解釋變數在5%與10%信心水準下顯著。

　　The main purpose of this research is to confirm the influence toward Taiwan Hi-Technology industries and domestic economy when Hi-Technology industries invest in China. The variables we are focusing on include domestic capital accumulation, employment population, trade revenue and expenditure, and GNP. According to my practicle research results, the goal is to figure out how the China investment will affect Taiwan's important economic variables. The following conclusions as shown below have been reached：
1.Aspect of Domestic Capital Formation
　　When Hi-Technology industries put money into China, it has nagative effect on domestic capital formation, though the relationship is not significant. The following facts might explain the result. First, Hi-Technology industries are taking advantage of China's low-priced labor, raw materials, and other production resources. Second, they want get closer to the consumer market. Third, they want to seize the market opportunity. Therefore, when Hi-Technology industries cut down the investment in the domestic market, the domestic capital might diminish as well. That is because the other industries' income increase can’t make up for a reduction of capital, which means the domestic investment and foreign country investment have a substitute relationship between each other.
2.Aspect of Employment Population
　　When Hi-Technology industries put money into China, it will have a nagative effect on employment population, though this is not statistically significant. This demonstrates on that when Hi-Technology industries' overseas direct investment becomes increasingly popular, it will make Hi-Technology industries decrease the labor demand in Taiwan. However, Hi-Technology industries’ overseas direct investment create the other specific labor demand such as marketing, finance, strategy and R&D. As a result, the labor demand will not decrease significantly.
3.Aspect of Balance of International Payments
　　When Taiwanese Hi-Technology industries put money into China, it will have positive effect on China's exporting value, though this is not statistically significant. This means that when Taiwanese Hi-Technology industries increase the investment in China, in the long term it will promote our domestic exports. It is possible that the main reason for this is that the Taiwanese subsidiaries located overseas still rely on Taiwan's parent companies as their main sources for their raw materials, components, and equipment machinery. Therefore, overseas investment will push domestic exports forward.
4.Aspect of GNP
　　China investment by Taiwanese Hi-Technology industries will have a positive effect on the GNP, though this is not statistically significant. That might explained by the following reasons. First, we were not careful enough defining and selecting our dummy variables or we might have overlooked some important dummy variables. Second, we used quarterly data only that cannot reflect the real variation instantly and can thus indirectly affect our statistical analysis. Therefore, after we execute the two stage least squares method, all variables are proved insignificant with a confidence level of less than 5% and 10%.

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