Valuation of Environmental Goods: Correcting for Bias in Contingent Valuation Studies Based on Willingness‐to‐Accept
提出用复合误差模型估计估值函数，以纠正条件估值研究中意愿接受度指标的系统性偏差，并用Troutman公园树木密度数据验证该方法。
Abstract The willingness‐to‐accept (WTA) measure of value is often subject to a systematic, large bias, making it unsuitable for use in contingent valuation studies. However, for the valuation of environmental goods, in many cases WTA rather than the willingness‐to‐pay (WTP) is the relevant measure. The paper proposes that, by using a composite‐error model for the estimation of the valuation function, a correction can be made for the bias in reported WTA. To illustrate the proposed methodology, it is applied to the data of the Brookshire‐Coursey (1987) study of alternative tree density in Troutman Park, Fort Collins.