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Valuation of Haze Management and Prevention Using the Contingent Valuation Method with the Sure Independence Screening Algorithm

机译：运用确定性独立筛选算法的权变评估方法评估雾霾治理与预防

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Haze has caused the deterioration of air quality and has ultimately affected the ecological environment. The contingent valuation method (CVM) is an important assessment method that is widely used in ecological economics. The public’s willingness to pay (WTP) for haze management and prevention can be analyzed using dichotomous choices. Here, the method is applied to study the valuation of haze management and prevention. Taking Jiangsu Province as an example, the non-market value is calculated by constructing the binary logistic model from questionnaire data, combined with a data-processing method: the sure independence screening (SIS) algorithm. The conclusions are as follows: (1) The public’s WTP for haze management and prevention is closely related to the monthly income of families and transport modality; (2) According to the CVM, the non-market value for haze management and prevention in Jiangsu is 7.645 billion yuan; (3) By the average estimate method (AEM), this value is 12.529 billion yuan, about 1.64 times the estimate from the CVM. This is because the AEM ignores the correlation among the influence factors and, therefore, overestimates the valuation of the services; (4) The CVM, combined with the SIS algorithm, does a better job in estimating the valuation of the services.
机译：霾导致空气质量恶化，并最终影响了生态环境。或有评估法（CVM）是一种重要的评估方法，已广泛应用于生态经济学中。可以使用二分法来分析公众对雾霾管理和预防的支付意愿（WTP）。在这里，该方法用于研究雾霾管理和预防的评估。以江苏省为例，通过从调查表数据构建二元逻辑模型，并结合数据处理方法：确定独立性筛选（SIS）算法，计算非市场价值。结论如下：（1）公众雾霾防治工作意愿与家庭月收入和交通方式密切相关; （2）根据CVM数据，江苏省雾霾防治的非市场价值为76.45亿元; （3）按平均估算法（AEM）计算，该值为12.529亿元，约为CVM估算的1.64倍。这是因为AEM忽略了影响因素之间的相关性，因此高估了服务的价值。 （4）CVM与SIS算法相结合，在估计服务价值方面做得更好。

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