Improvements in the effectiveness and efficiency of supply-side waste management are necessary in many countries. In Japan, municipalities with limited budgets have delayed the introduction of new waste-management technologies. Thus, the central government has used subsidies to encourage municipalities to adopt certain new technologies to improve waste-management efficiency. In this study, we measure the efficiency of waste management and explore how technology is related to technical efficiency. We find that municipalities are likely to adopt less-efficient technologies and that the central government's policies are likely to promote inefficient technology adoption by local governments.
We measure the accident externality from driving in the spirit of Edlin and Karaca-Mandic (2006). We collect data that parallel those used in Edlin and Karaca-Mandic and apply their empirical method to gain further insights about the accident externality. Consistent with Edlin and Karaca-Mandic, we find larger external costs for higher density roads, although the sizes largely depend on the variable definition and the model specification. One intriguing result is that per-vehicle external costs are considerably smaller in Japan than those in the U.S. In Kyoto, for example, an additional driver increases accident costs for other drivers by $248--$802, while it is $1,725--$2,432 in California where the traffic density is approximately the same. However, on a per-mile basis, much closer externalities are obtained. This finding indicates that the large externality in high-density roads underscored in Edlin and Karaca-Mandic is partly attributed to the fact that U.S. drivers drive longer distances, comparatively speaking.
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