Extending Weitzman's economic ranking of biodiversity protection: combining ecological and genetic considerations
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- 作者：C. Martijn van der Heide ; Jeroen C.J.M. van den Bergh and Ekko C. van Ierland
- 关键词：Biodiversity ; Economic analysis ; Endangered species ; Survival probabilities ; Evaluation criteria
- 刊名：Ecological Economics
- 出版年：2005
- 出版时间：2005
- 年：2005
- 卷：55
- 期：2
- 页码：218-223
- 全文大小：119 K
文摘
This paper presents a critique and extension of Weitzman's cost-effectiveness criterion for ranking biodiversity-protecting projects. Weitzman's result, which is entirely based on genetic diversity, is argued to be able to give rise to incorrect policy advice on biodiversity protection. The reason is that ecological relationships are not included. In order to do so, dependent survival probabilities are introduced. It is shown that these give rise to a different ranking of biodiversity-protecting projects. Subsequently, alternative evaluation criteria are discussed.