A Choice Modeling Approach to Test an Order Effect of Environmental Risk Information.
スポンサーリンク
概要
- 論文の詳細を見る
The development of a variety of stated preference methods has been an important agenda in the field of environmental valuation during the last decade. It leads to the wide use of those methods for costbenefit analyses. In this article, choice modeling is examined as to whether or not it is reliable for the evaluation of agri-environmental policy measures such as the direct payment and rice terrace partnership program. A choice modeling approach has an advantage in evaluating the multi-attribute environmental goods compared with contingent valuation method. Rice terrace has two different kinds of environmental impacts, i. e., environmental benefits (multifunctionality) and damage. Both environmentally positive and negative impacts should be evaluated simultaneously. Otherwise, the result is considered to be biased. The choice modeling can accommodate a number of attributes. Therefore, it is quite a useful tool to assess the environmental value of multi-attribute goods. Environmental benefits are classified into two categories.<BR>One is the conservation of rural landscapes and ecosystems, and the other is disaster prevention. As for environmental damage, water contamination caused by the excessive application of pesticide and fertilizer is presented.<BR>A mail survey was conducted in July, 2001. Two types of questionnaires were mailed to 400 general households in Kamogawa-city. Samples were randomly chosen from the telephone directory. The difference of those questionnaires appears in an order of attributes and their explanation. Exchanging the attributes between an environmental benefit and damage enables an analysis of an order effect. Their overall response rates were 74.5% and 82.0%, respectively.<BR>This experimental choice technique produced marginal willingness-to-pays for three types of environmental impacts with statistical significance of key variables. Marginal willingness-to-pays for water contamination were at least twice as high as those of two environmental benefits.<BR>An order effect of the questionnaire design was tested using likelihood ratio test and t test. Consequently, an order effect was statistically revealed. This finding suggests the choice modeling is not an ideal tool for environmental valuation. It is also affected by some biases due to respondents inconsistent attitude toward environmental risk.
- 農村計画学会の論文
農村計画学会 | 論文
- 韓国における都市農村交流の実態と特徴 : 江原道華川郡を事例として
- 総合討論および総括
- 住民参加による農村地域の親水空間の維持管理活動の事例分析--日本の農村地域を事例に (特集 2005年度日韓国際シンポジウム「農村アメニティ」)
- 有田博之・福与徳文 著, 『集落空間の土地利用形成』, 日本経済評論社, 1998年, 本体4,000円
- 優良田園住宅法における居住環境の実現手法に関する研究 : 上越市アーバンビレッジを例として