Sequence Effects in the Valuation of Multiple Environmental Programs Using the Contingent Valuation Method
研究在条件估值调查中，项目呈现顺序如何影响受访者的支付意愿，并发现允许受访者修改答案可减轻顺序效应，对政策制定者评估环境项目价值有参考意义。
In contingent valuation, the willingness to pay for hypothetical programs may be affected by the order in which programs are presented to respondents. With inclusive lists, economic theory suggests that sequence effects should be expected. However, when policy makers allocate public budgets to several environmental programs, they may be interested in assessing the value of the programs without the valuations being affected by the order in which the programs are presented. Using single-bounded dichotomous choice contingent valuation questions, we show that if respondents have the possibility to revise their willingness-to-pay answers, sequence effects are mitigated. <i></i>