Valuing quality changes in Caribbean coastal waters for heterogeneous beach visitors
Valuing quality changes in Caribbean coastal waters for heterogeneous beach visitors
复制标题
DOI：
10.1016/j.ecolecon.2009.12.007
复制
发表时间：
2010-03-15
影响因子：
7
通讯作者：
Scarpa, Riccardo
中科院分区：
文献类型：
--
作者：
Beharry-Borg, Nesha;Scarpa, Riccardo
沿海沃茨的质量现在是托巴哥的一个主要环境问题，因为它在支持具有重要经济意义的旅游部门和保障公众健康方面发挥着作用。在本文中，我们报告的结果，两个选择实验设计，以估计支付意愿（WTP）对284名参与海滩休闲活动的居民和游客的调查结果进行了分析。调查结果采用隐类和混合多项logit模型对284名参与海滩休闲活动的居民和游客进行了分析。解释任何未观察到的味道异质性的存在。使用这些模型的一个额外的优势是能够确定个人特定的支付意愿估计每个属性的结果表明，个人特定的手段的支付意愿估计值之间的差异显着浮潜者和nonsnorkellers的分析结果，使用潜在的类模型确定了两个亚组与不同的偏好与浮潜组。未观察到的口味异质性更好地代表了nonsnorkellers与混合多项logit模型这项研究不仅解决了缺乏估值估计在这个岛上，但也表明了使用估计方法的重要性，占个别具体差异的支付意愿估计，包括个人偏好是特别重要的，在一个小的背景下，由于财政资源有限和自然资源管理目标相互冲突，需要优先考虑政策建议岛屿发展中国家。皇冠版权所有（C）2010出版的爱思唯尔B V保留所有权利。
The quality of the coastal waters is now a major environmental issue in Tobago due to its role in supporting the economically important tourism sector and for safeguarding public health. In this paper we report the results of two choice experiments designed to estimate willingness to pay (WTP) for an improvement in coastal water quality for two groups of beach recreationists' snorkellers and nonsnorkellers Responses from 284 respondents were analyzed and included both locals and tourists to the island who participated in beach recreation Latent class and mixed multinomial logit models were used in the analysis of the responses to explain the presence of any unobserved taste heterogeneity. An additional advantage of using these models was the ability to determine individual-specific WTP estimates for each attribute The results indicate that individual specific-means of WTP estimates vary significantly between snorkellers and nonsnorkellers The results from the analysis using the latent class model identified two subgroups with distinct preferences with the snorkeller group. Unobserved taste heterogeneity was better represented for the nonsnorkellers with a mixed multinomial logit model This study not only addresses the lack of valuation estimates on this island but also demonstrates the importance of using estimation methods that account for individual-specific differences in WTP estimates The inclusion of individual preferences is especially important in the context of a small-island developing country where there is a need to prioritise policy recommendations due to limited financial resources and conflicting objectives for natural resource management. Crown Copyright (C) 2010 Published by Elsevier B V All rights reserved.