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C00029
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保護關渡沼澤區的效益評估
Benefit Estimations of Preserving Kuantu Wetland
1.劉錦添
1.Jin-tan Liu
1.國立臺灣大學經濟學系
1.Department of Economics, National Taiwan University
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1.國立臺灣大學經濟學系
1.Department of Economics, National Taiwan University
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1.行政院國家科學委員會
1.National Science Council
A.14 計畫執行期間(起):1993-08-01
A.14 計畫執行期間(訖):1994-07-31
1993-12-011993-12-31
A.16 收到日期:0000-00-00
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住在大台北縣市、具有國籍、設有戶籍,且年齡在18歲以上的國民,其中不包括軍事單位、學校、職訓中心、宿舍、監獄等機構內之居民

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一般民眾甲卷:350 一般民眾乙卷:355 鳥會會員甲卷:90 鳥會會員乙卷:93

355
002
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C.2 聯絡日期:1995-11-28
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1.國立臺灣大學經濟學系
1.Department of Economics, National Taiwan University
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C.7 資料公開日期:0000-00-00
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1.托比特模型
2.假設性市場評價法
3.羅吉特模型
4.關渡沼澤區
5.願付價值
1.Contingent Valuation Method
2.Kuantu Wetland
3.Logit
4.Tobit
5.Willingness To Pay
本文係利用假設性市場評價法估計保護關渡沼澤區的願付價格。關渡沼澤區係台灣最重要的賞鳥地區之一,每年有成千上萬的候鳥棲息。我們利用開放式問答與封 閉式問答二種問卷,訪問不同的樣本。開放式問答係利用tobit模型估計,而封閉式問答以logit模型估計。另外,我們利用Krinsky and Robb模擬方法,以及bootstrapping方法來計算願付價值平均值的信賴區間。根據開放式問答樣本,維持沼澤區現況的每年願付價值為1225 元,而改善10%則為1695元。另外,封閉式問答樣本,維持現況則每年願付價值為1620元,而改善10%則為3161元。估計結果顯示,封閉式問答較 開放式問答有較高的願付價值。這和Walsh,Johnsom and McKean(1989)的發現相一致。

This paper uses the contingent valuation method to estimate willingness to pay for preservation of the Kuantu wetland in Taiwan. Kuantu, one of the most important bird watching areas, was chosen as the study site. We test the differences in contingent values across open-ended and closed-ended question formats using different samples. The tobit model is used to estimate the open-ended samples, while the logit model is used for the closed-ended samples. Krinsky and Robb's simulation technique and bootstrapping methods are used to calculate the confidence intervals of the mean measures. For the open-ended samples, the means of the yearly WTP measures are around NT$1,225 for the wetland maintenance program and NT$1,695 for the wetland improvement program. For the closed-ended samples, the mean measures are NT$1,620 for the wetland maintenance program and NT$3,161 for the improvement program. The results show that the closed-ended format has greater values. This is consistent with the findings of Walsh, Johnson and McKean (1989).

D.16 完成檢誤日期:0000-00-00
D.17 預定釋出日期:0000-00-00
D.18 初次釋出日期:2003-03-14
D.19_1 最新版釋出日期:2014-08-04
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10.6141/TW-SRDA-C00029-1
http://efenci.srda.sinica.edu.tw/webview/index.jsp?object=http://efenci.srda.sinica.edu.tw:80/obj/fStudy/C00029
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