本研究蒐集整理2002～2007年桃園縣土地買賣交易資料，透過計量實證研究方式，以特徵價格理論為基礎，建構地價多元迴歸模型，並同時採取差異中的差異估計法（difference-in-differences estimator），藉著時間的差異以及實驗組與控制組的差異相互對照，推論出土增稅減半徵收與金融機構全面實施新巴塞爾協定二項政策實施對建地價格的影響。根據本研究之結果，可歸納結論如下： （一）在土地特徵價格函數基本模型的GLS估計結果可以得到以下估 計結果： 1.土地面積、地形、主要聯外道路寬度、臨街條件等內在因 素條件影響因子與土地價格呈正向顯著關係。 2.央行基本放款利率與地價呈正向顯著關係。 3.實施都市計劃、市地重劃與提高都市化程度對提高地價有 顯著影響。 4.土地座落於縣轄市對於提高地價有顯著影響。 （二）土地增值稅減半徵收政策實施使「建地」地價提高，也證明 政府實施減稅政策對於房地產市場的活絡確實有顯著效果， 使地價上揚。 （三）國內金融機構為符合BASELⅡ的規範，對於房地產融資放款授 信的緊縮，對於房地產市場確實有負面效果，造成「建地」 價格下跌。 （四）土地增值稅減半徵收及國內金融機構全面實施BASELⅡ二項政 策實施，對於縣轄市地價均無顯著影響。亦即，發展成熟的 縣轄市地區，較難以受單一政策事件影響而導致地價有大幅 的波動。 ;In this research, we collected the transaction price of land from 2002 to 2007 in Taoyuan County. Our study adopts the traditional hedonic price method to find the determinant of land price. In addition, this study uses the difference-in-differences method to measure the effects of policy changing. We focus on two policies: (1) the cut down half on the increment tax of the land, and (2) the implementation of BASEL II for domestic financial institution in 2007. According to results of this research, the conclusions can be summarized as follows： 1.The characteristic variables such as the area of land, the landform, the width of main road, urban plan, urban readjustment and interest rate of loans etc., have positive correlation with the land prices as expected. 2.The policy of the cut down half on the increment tax of the land makes the price of construction land raised. It also proves that the government policy has significant influence on real estate market. 3.Domestic financial institutions shrink the loans of real estate because of the restriction of the BASELⅡ. It has the negative effect on real estate market and makes the construction land price declined. 4.The two policies all have no significant influence on the city type of land price in Taoyuan County. That is, the land price of developed locations is hard to be influenced by single policy affair.
