查詢結果分析
來源資料
頁籤選單縮合
題名 | 處理抗議樣本對於願付價值與出價函數之影響=The Influence on Bid Function and Willingness to Pay under Handling Protest Response |
---|---|
作者 | 鄭蕙燕; 羅炳和; | 書刊名 | 臺灣土地金融季刊 |
卷期 | 42:3=165 民94.09 |
頁次 | 頁1-15 |
分類號 | 550.1 |
關鍵詞 | 條件評估法; 抗議樣本; 野生動物保護區; 願付價值; 保育效益; Contingent valuation method; Protest responses; Wildlife sanctuaries; Willingness to pay; Conservation benefit; |
語文 | 中文(Chinese) |
中文摘要 | 在使用條件評估法評估非市場財貨時,可能面臨受訪者不願意支付願付價值或出價為零。在這些樣本有些可能為抗議樣本。對於抗議樣本一般處理方法是直接捨棄,但可能產生願付價值之高估。本文以宜蘭縣無尾港水鳥保護區為例評估保育效益,並採取直接刪除抗議樣本、不刪除抗議樣本,以平均願付價值替代抗議樣本之願付價值及使用複迴歸方式求得抗議樣本之願付價值等四種方式處理抗議樣本。實證結果發現若直接刪除抗議樣本與以平均願付價值代抗議樣本之願付價值所求得平均願付價值皆為234.11元/人,若以不刪除抗議樣本方式之平均願付價值為185.05元,而複迴歸方式所求得之平均願付價值則為228.33元/人。故直接刪除抗議樣本與抗議樣本以平均願付直替代將會高做願付價值,但若不刪除抗議樣本方式則有低估願付價值的替代將會高估願付價值,但若不刪除抗議樣本方式則有低願付價值之情形,本文建議以複迴歸方式求得抗議樣本之願付價值,以減少評估結果之偏誤。 |
英文摘要 | When evaluating non-market goods by contingent valuation method, some visitors have no willingness to pay or they bid zero. In the above samples, some may be caused by protest response. Normally, the samples about protest response in the study are abandoned directly. But it might overestimate actual willingness to pay of the samples. This paper takes the Wuwei Harbor Waterbird Refuge in Ilan County for the example. Not only evaluates the Conservation benefit, but also adopts following four methods to handle protest response: (1) abandoning protest response Directly; (2) keeping protest response; (3) replacing protest response to average willingness to pay; (4) Getting the willingness to pay fo the protest response by multiple regression method. The empirical results show that the mean of willingness to pay for the samples about protest response in the study being abandoned directly or being replaced to the mean willingness to pay are both NT$234.11 each person. In the case of keeping protest response, it will be NT$185.08 each person. The mean of willingness to pay in the case of using multiple regression method to estimate the sample protest response is NT$228.23 each person. So the conclusion is as the followings: The actual willingness to pay will be overestimated in the cases of abandoning protest response directly and replacing protest response to average willingness to pay. On the order hand, keeping protest response will cause underestimated. This paper suggests that to get the willingness to pay of the protest response by multiple regression method, to reduce the bias of the evaluation. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。