Valuing Hemlock Woolly Adelgid Control in Public Forests: Scope Effects with Attribute Nonattendance
通过在线调查北卡罗来纳州居民，研究在评估保护公共森林免受入侵物种铁杉球蚜破坏时，属性不关注如何影响支付意愿对保护范围变化的敏感性。
Sensitivity to the scope of public good provision is an important indication of validity for the contingent valuation method. An online survey was administered to an opt-in non-probability sample panel to estimate the willingness-to-pay to protect hemlock trees from a destructive invasive species on federal land in North Carolina. We collected survey responses from 907 North Carolina residents. We find evidence that attribute non-attendance (ANA) is a factor when testing for sensitivity to scope. When estimating the model with stated ANA, the ecologically and socially important scope coefficients become positive and statistically significant with economically significant marginal willingness-to-pay estimates.