Analysis of the socioeconoraic impact of landfill siting considering regional factors

摘要

This study examined the socioeconomic impact of landfill siting using a choice experiment. First, the impact of a landfill was estimated using the data collectively. The results of this analysis showed that residents more negatively evaluate accepting waste from other municipalities when the municipalities are farther away, even if the quantity of waste is the same. Moreover, they showed that the public negatively evaluates siting landfills near sources of drinking water and believes that the deforestation required for landfill siting is undesirable. They also showed that residents are more strongly opposed as the landfill site is closer to their own houses. Second, the impact is estimated when grouping the data considering regional factors. The results indicate that residents in rural areas more strongly oppose accepting waste from other municipalities than do residents in urban areas, and those in the municipalities with their own municipal solid waste (MSW) landfills more strongly oppose accepting it than those in municipalities without them. Moreover, the external costs in each community examined considering three virtual landfill siting plans were estimated using estimated marginal willingness to pay. The results show that the external costs depend on not only the number of households but also on regional factors, especially whether or not the municipality has its own MSW landfill.