Does One Size Really Fit All? Ecological Endpoint Heterogeneity in Stated Preference Welfare Analysis
研究发现，在陈述偏好研究中，不同人群关注的生态终点不同，统一的情景设计可能无法对所有群体进行有效的福利估计，因此设计估值研究时应考虑终点异质性。
Obtaining valid stated preference welfare estimates for changes in biophysical systems requires identification of the ecological endpoints valued by respondents. Challenges for scenario design can occur if endpoints differ across respondents, because it may be infeasible to provide scenario information on all possible endpoints. We explore an approach to choice experiments that tailors attributes to empirically identified population groups. Results suggest that different endpoints are relevant to different groups, and that one-size-fits-all scenarios common in the literature may not enable valid welfare estimation for all groups. These findings suggest that endpoint heterogeneity should be considered when designing valuation studies..