本文以2001~2015年間，臺灣地區塑膠產業22家公司的縱橫資料為樣本，實證估計該產業整體的投資行為。 估計結果如下：Tobin’s q 對投資比的影響並不顯著，而財務槓桿比與新增債務比則具有顯著的正面影響。然而，近五年來新增債務比對投資比的影響持續朝正向擴大。最後，就各變數對投資比的貢獻度而言，近五年來Tobin’s q的變動居首位。

This thesis takes the penal data from 22 companies in Taiwan’s plastic industry as sample to estimate their investment behavior. The estimated results have shown that Tobin’s q does not significantly affect the investment ratio, while leverage ratio and new debt ratio brings about significant positive effects during the period between 2001 and 2015. However, the sign of Tobin’s q has turned into significantly positive during the recent five years. Finally, is so far as the contribution to investment ratio is concerned, Tobin’s q has played the most important role recently.

中文摘要I
英文摘要II
目錄III
表目錄iv
圖目錄v


目錄
第一章 緒論 1
第一節 研究動機	1
第二節 我國塑膠產業概況	4
第三節 本文研究架構 16
第二章 文獻回顧	17
第一節 企業廠商投資行為總論 17
第二節 實證研究與結果 22
第三章 研究方法	25
第一節 實證投資方程式設定 25
第二節 影響近年企業投資之因素衡量 26
第四章 實證估計結果 28
第一節 資料來源與敘述統計 28
第二節 基本模型估計結果	30
第五章 結論 37
參考資料	38
附錄：樣本公司基本資料	40

 
表目錄
表 一  塑膠製品業分類 6
表 二  經濟部工業產品分類（第 16 次修訂] 11
表 三  塑膠製品業各分項業別產值及成長率	13
表 四  塑膠製品業研究發展經費佔營業額之比率與其他行業之比較	15
表 五  塑膠製品製造業產業產銷存變化趨勢	15
表 六  資料名稱與來源 28
表 七  敘述統計 29
表 八  基本模型估計結果 32
表 九  延伸基本模型依固定效果模式估計結果 34
表 十  近五年來各解釋變數對投資之貢獻度分析 35

 
圖目錄
圖 一  中華民國GDP成長率	 1
圖 二  中華民國工業產值對GDP成長貢獻度 2
圖 三  中華民國民間部門機器設備年增率 3
圖 四  石化及塑膠產業間之關係 5
圖 五  塑膠製品業景氣信號 7
圖 六  我國塑膠產業發展歷程 8
圖 七  塑膠分類樹狀圖 9
圖 八  塑膠製品製造流程 	10
圖 九  塑膠製品製造業 10

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