Rahman Mohammad Mashiur, Bohara Alok K
The W. A. Franke College of Business, Northern Arizona University, 101 E McConnell Dr, Flagstaff, AZ, 86011, USA.
Department of Economics, The University of New Mexico, 1915 Roma Ave NE, Albuquerque, NM, 87131, USA.
J Environ Manage. 2023 Feb 1;327:116805. doi: 10.1016/j.jenvman.2022.116805. Epub 2022 Dec 22.
This study deploys a choice experiment method to estimate the preference and willingness to pay for a better solid waste management system in Siddharthanagar municipality in Nepal. A primary survey of 611 households was conducted, and the results from the Generalized Multinomial Logit Model (GMNL) indicate a public preference for a better waste management service. Significant heterogeneity in household preferences is evident after accommodating each choice selection's preference certainty in the GMNL model. On average, households prefer to pay the highest amount for constructing and maintaining a sanitary landfill, which is Nepalese Rupee (NPR) 158/month (USD 1.43). The geographic distribution of the marginal willingness to pay (MWTP) by hot spot analysis from the geocoded location also indicates spatial heterogeneity across the study area. The MWTP for each waste management attribute is spatially autocorrelated, and household awareness and attitude significantly impact this spatial dependence. Overall, both the choice models result and spatial analyses indicate the policy should be targeted at a localized level to increase awareness concerning the proper management of solid waste.
本研究采用选择实验方法，以估计尼泊尔希德哈塔纳加尔市居民对更好的固体废物管理系统的偏好和支付意愿。对611户家庭进行了初步调查，广义多项logit模型（GMNL）的结果表明公众对更好的废物管理服务有偏好。在GMNL模型中考虑每个选择选项的偏好确定性后，家庭偏好存在显著的异质性。平均而言，家庭愿意为建设和维护卫生填埋场支付最高费用，即每月158尼泊尔卢比（1.43美元）。通过对地理编码位置进行热点分析得出的边际支付意愿（MWTP）的地理分布也表明，研究区域内存在空间异质性。每个废物管理属性的MWTP在空间上是自相关的，家庭意识和态度对这种空间依赖性有显著影响。总体而言，选择模型结果和空间分析均表明，政策应针对地方层面，以提高对固体废物妥善管理的认识。
