1
3
E91064
3
009
條件評估法中近似理想誘導支付模式之建構:生物多樣性資源價值之探討與評估
Design of an Almost Ideal Elicitation Method in Contingent Valuation: Scrutiny and Evaluation of the Benefit of Biodiversity
1.吳珮瑛
1.Pei-ing Wu
1.國立臺灣大學農業經濟學系暨研究所
1.Department of Agricultural Economics of National Taiwan University
001,002,003,004
1.國立臺灣大學農業經濟學系暨研究所
1.Department of Agricultural Economics of National Taiwan University
002
1.行政院國家科學委員會
1.National Science Council
A.14 計畫執行期間(起):2002-08-01
A.14 計畫執行期間(訖):2003-07-31
2003-01-232003-02-17
A.16 收到日期:2004-01-12
1
台灣本島除台南縣市以外所有縣市之6,191,580家戶

1

700


700
001
01
C.2 聯絡日期:2004-01-13
2
1.國立臺灣大學農業經濟學系暨研究所
1.Department of Agricultural Economics of National Taiwan University
1
C.7 資料公開日期:2006-08-01
2
008
2
1
1
1
2
3
3
001
1,2
1.四階層誘導支付方式
2.生物多樣性
3.效用主義
4.效率指標值
5.最佳效率邊界
1.Biodiversity
2.Efficiency Index
3.Four-Level Elicitation Method
4.The Most Efficiency Frontier
5.Utilitarian
 本研究建構一個擁有四階段決策過程的條件評估法,稱為「近似理想誘導支付條件評估模式」,此模式的前三階段是採用二元選擇設計,受訪者面對此種方式不僅 容易回答,且在一連串的選擇過程後,可以將願意支付額度具體地用單一數值呈現。同時,近似理想誘導支付模式是在最適設計原則下,制訂前三階段之受訪額度。 在如此的設計下,近似理想誘導支付模式不僅能使各個階段的效率值隨著階層增加而改善,也能夠將效率值控制在特定範圍內。同時,由近似理想誘導支付模式所獲 得的最佳效率指標值,可以繪製出最佳效率邊界,依此可以做為其他實證研究,估算所得之願意支付價值估計效率性的比較與對照。

為了驗證近似理想誘導支付模式之可行性與實用性,本文選擇一個具有生物多樣性功能之黑面琵鷺保護區做為效益評估對象。然而,除了關心效益的評估結果 外,同時也探討經濟學者從事效益評估背後所隱含的哲學基礎。為呈現黑面琵鷺保護區的多元價值,本研究在問卷設計中預擬規劃一個兼具旅遊、就業與保育價值內 涵的方案,並且採用近似理想誘導支付模式,評估此一多樣性資源之價值。

由實證估計黑面琵鷺保護區多元價值可知,依近似理想誘導支付模式理論上所繪製的最佳效率邊界,可以做為其他多種實證估計效率性的比較基準,比如,實證 估計時會考量選擇不同的分配函數型態、設定不同的估計函數形式、以及納入受訪者之特質等,此時,可以比較在這些情況下,各種平均願意支付價格效率性與最佳 效率值之差異。結果顯示,當實證採用的模型設定愈符合理論上的理想狀況時,則實證效率指標值會愈接近最佳效率指標值,同時實證效率線也會愈靠近最佳效率邊 界;反之,若差異的情況愈多,則會愈偏離最佳狀況。

A four-level of elicitation method in contingent valuation will be designed in this study. This elicitation method is a combination of triple-bounded discrete choice and open willingness to pay revelation named as almost ideal elicitation contingent valuation method. Under such elicitation method, each respondent confronts a three-time fixed numbers of bidding procedure and the final willingness to pay is then converged to a specific number.

This method has the advantage of controlling the efficiency of estimated mean welfare measure in specific and ideal range. Furthermore, the most distinguished feature of this elicitation method is able to offer a paradigm for empirical research in examining efficiency performance of welfare measure. That is, an efficiency frontier can be drawn from such elicitation method.

In order the test and examine the applicability of this method, a site with feature of biodiversity is selected. The Black-faced spoonbill Protected Area in Tainan county is qualified for this purpose. Besides the evaluation for the site, a normative basis for designing of environmental conservation policies and action foundation for policies implementation. It is deemed that the applicability of conservation policy is the final and main purpose for policies design. As a result, conservation policies are inescapable from value judgment of human preference.

Utilitarianism, the environmental ethics proposed by environmental economists in relating human being to nature is viewed too be provoked under self-interest to gain the greatest social benefit. It is then believed that under motivation of self-interest change and adjustment of the components of social benefit is contemplated as norm and foundation for conservation of biodiversity resources.

The empirical results have demonstrated that efficiency performance of estimated mean willingness to pay from various specification of empirical application, such as different distribution, different specification of functional form, and inclusion of characteristics of respondents, is lower than that from the theoretical derivation.

D.16 完成檢誤日期:2004-09-08
D.17 預定釋出日期:2006-08-01
D.18 初次釋出日期:2006-08-01
D.19_1 最新版釋出日期:2006-08-01
1
1
1
2
1,3
10.6141/TW-SRDA-E91064-1
https://efenci.srda.sinica.edu.tw/webview/index.jsp?object=https://efenci.srda.sinica.edu.tw:80/obj/fStudy/E91064
追蹤清單
下載(0)
申請(0)
遠距(0)