Use of Dichotomous Choice Nonmarket Methods to Value the Whooping Crane Resource
应用二分选择条件价值评估法，量化个人对保护鸣鹤资源的经济剩余，发现统计拟合相似的模型可能得出差异巨大的经济价值，提醒使用该方法时需谨慎。
Abstract A dichotomous choice form of contingent valuation is applied to quantify individuals' economic surplus associated with preservation of the whooping crane resource. Specific issues and limitations of the empirical approach are discussed. The results of this case study reveal that models with similar statistical fits can lead to very disparate measures of economic value, regardless of whether the mean or median is chosen to estimate average willingness to pay. Such results suggest caution is necessary when applying dichotomous choice models in contingent valuation.