文章基本信息

标题：Incorporating Uncertainty and Cero Values into the Valuation of Protected Areas and Species
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作者：Hurle, Jesus Barreiro ; Garcia, Jose Maria Casada ; Perez y Perez, Luis 等
期刊名称：Journal of Food Distribution Research
印刷版ISSN：0047-245X
出版年度：2005
期号：SUPPL
出版社：Food Distribution Research Society
摘要：Under the Spanish conservation law, compensation is envisaged for the damage associated with all actions that reduce the quantity or quality of protected areas and species. This paper provides a tool to evaluate the monetary equivalent of this damage. We conduct a contingent valuation exercise to estimate the existence value related to protected areas and species in Aragon. This estimate is then reconsidered including the possibility of zero bids and also the possibility of uncertain preferences for non-familiar goods. Considering these two effects, mean values are reduced significantly giving support to previous recommendations of dividing by two contingent valuation estimates from dichotomous choice question formats.
关键词：natural heritage;contingent valuation;Spike model;uncertainty