Coherent Arbitrariness: On Value Uncertainty for Environmental Goods
研究人们对环境物品改善的价值不确定性，提出“价值缺口”的参数解释，并给出从支付阶梯数据计算总支付意愿的简单方法。
This paper investigates the idea that people are unsure about the value they place on prospective changes in environmental goods. In particular, we focus on a parametric explanation of the determinants of a “value gap,” the difference between the most someone is sure they would pay for an increase in an environmental good, and the smallest amount they are sure they would not pay. We also present a simple means of calculating aggregate willingness to pay from data on the range of willingness to pay expressed via a payment ladder.<i></i>