Estimating Non-market Values of Marine Protected Areas: A Latent Class Modeling Approach
Estimating Non-market Values of Marine Protected Areas: A Latent Class Modeling Approach
复制标题
估计海洋保护区的非市场价值：潜在类别建模方法
DOI：
10.1086/mre.23.3.42629620
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发表时间：
2008
影响因子：
2.9
通讯作者：
S. Edwards
中科院分区：
文献类型：
--
作者：
K. Wallmo;S. Edwards
海洋保护区的设计在海洋科学家中引起了许多讨论。生态研究表明，保护10%至40%的区域生态系统是必要的，以保持多样性，而公众对MPA大小的偏好还没有被建模。我们进行了选择实验，以估计在不同的大小和允许使用的水柱和应用潜在的类规格，以适应口味参数的异质性的地区的海底保护物种和栖息地多样性的价值。结果确定了三个潜在的类的样本，并建议，而保护区的生态保护区是效用增加的最大规模/使用组合，较小的储备与自由使用政策产生最大的增长。我们的研究表明，边际效用递减MPA的大小，大大小于经常引用的范围，和不同的潜在类强调需要质疑的假设时，评估MPA政策的同质偏好。
The design of marine protected areas (MPAs) generates much discussion among marine scientists. Ecological studies have suggested that protecting 10 to 40% of regional ecosystems is needed to preserve diversity, while public preferences for MPA size have not been modeled. We conduct a choice experiment to estimate the value of protecting species and habitat diversity on the sea floor in areas that vary in size and allowable uses of the water column and apply a latent class specification to accommodate taste parameter heterogeneity. Results identify three latent classes in the sample and suggest that while protecting areas as ecological reserves is utility increasing for most size/use combinations, smaller reserves with liberal use policies produce the largest increases. Our research suggests diminishing marginal utility for MPA sizes that are substantially smaller than ranges often cited, and the distinct latent classes underscore the need to question the assumption of homogeneous preferences when evaluating MPA policy.