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首页> 外文期刊>Ocean & coastal management >Using choice modelling to estimate the non-market benefits of coral reef restoration in the Philippines
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Using choice modelling to estimate the non-market benefits of coral reef restoration in the Philippines

机译：使用选择建模来估算菲律宾珊瑚礁恢复的非市场益处

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摘要

Coral reef health decline in the Philippines provides an impetus for reef restoration investments. A benefit-cost analysis can be used to support policy-relevant decisions on such investments. However, to our knowledge, most benefit-cost analyses conducted for coral reef investments in the Philippines have been inadequate because they have used non-marginal values, proxies and benefit transfers as benefit estimates, or have been cost-effectiveness studies. To overcome this information inadequacy, this paper reports estimates of coral reef restoration non-market values in the context of an investment in Mass Larval Enhancement on two scales in the Philippines restoration on a single coral reef and restoration on a nation-wide scale. Using choice modeling for two split samples (locals living near the single coral reef and those living in Metro Manila), willingness to pay values for coral reef attributes that have been improved through restoration were estimated. At the single reef scale, respondents from the Manila sample were, on average, willing to pay Php 1.41 per percentage increase in coral cover, Php 0.93 per additional individual fish, and Php 1.17 per marginal increase in fish species per household monthly for ten years (Php 1.40, Php 0.62, and Php 1.15 for the same respective attributes within the local sample). At the nation-wide scale, the equivalent value estimates for the Manila sample were Php 8.70 and Php 8.13 for coral cover and fish species respectively (Php 33.06 and Php 27.05 for the local sample). Respondents overall were not willing to pay for increases in fish individuals on a national scale. Differences in the attribute value estimates between the two restoration scales provide evidence of the validity of the results. The differences in value estimates between the local and Metro Manila samples varied depending on the coral reef attribute. These results should be taken into consideration when using benefit transfer to inform benefit-cost analyses across differing populations.
机译：菲律宾的珊瑚礁健康衰退为珊瑚礁恢复投资提供了动力。益处成本分析可用于支持对此类投资的政策相关的决定。然而，据我们所知，菲律宾珊瑚礁投资进行的大多数福利 - 成本分析是不充分的，因为它们已经使用了非边缘价值，代理和福利转移作为福利估计，或者是成本效益研究。为了克服这一信息不足，本文报告了珊瑚礁恢复非市场价值在菲律宾在唯一珊瑚礁上的两种规模上进行了大众幼虫增强的背景下的估计，并在全国范围内恢复。使用选择建模两个分裂样本（居住在唯一珊瑚礁附近的当地人以及生活在地铁马尼拉的当地人），估计通过恢复得到改善的珊瑚礁属性的价值观。在单一的珊瑚秤上，来自Manila样品的受访者平均愿意将PHP 1.41每百分比珊瑚盖，PHP 0.93每额外鱼类增加，以及每月每户每户每年鱼类的每百年每百年的PHP 1.17。 （PHP 1.40，PHP 0.62和PHP 1.15用于本地样本中的相同各个属性）。在全国范围内，分别为珊瑚覆盖和鱼类的PHP 8.70和PHP 8.13的等效值估计（PHP 33.06和本地样品的PHP 27.05）。受访者整体并不愿意在全国范围内支付鱼类的增加。两种恢复量表之间的属性值估计的差异提供了结果的有效性的证据。本地和地铁马尼拉样本之间的价值估计的差异根据珊瑚礁属性而变化。在使用惠益转移时应考虑这些结果，以便在不同的人群中提供福利 - 成本分析。

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