Unbiased Value Estimates for Environmental Goods: A Cheap Talk Design for the Contingent Valuation Method
提出一种“廉价谈话”设计，用于减少条件估值法中的假设偏差，从而更准确地估计环境物品的价值，对从事环境价值评估的研究者和政策制定者有参考价值。
Unbiased Value Estimates for Environmental Goods: A Cheap Talk Design for the Contingent Valuation Method by Ronald G. Cummings and Laura O. Taylor. Published in volume 89, issue 3, pages 649-665 of American Economic Review, June 1999