The Korea Local Administration Review

This study measures the trend of changes in the efficiency and efficiency of household waste management services for 11 years from 2008 to 2018 in 69 autonomous districts in seven metropolitan cities, and analyzes the influencing factors to evaluate the efficiency of household waste management services in the future. Its purpose is to provide evaluation information that is important for improvement. To this end, DEA, super-efficiency model, and Malmquist productivity index were used, and Tobit regression analysis was performed to analyze the factors influencing the efficiency. As a result of the study, in the efficiency analysis for a single year in 2018, an average efficiency figure of 69.97% was found, and 11 of the 69 front offices were evaluated as efficient. The reason for the inefficiency was largely due to pure technological efficiency, and in the RTS measurement, 44 ward offices showed an increase in scale efficiency. In the trend analysis of efficiency change over 11 years and 5 periods from 2008 to 2018, MI showed a 6% annual average decline, and among the detailed components of the productivity index, the average decline rate of 8% was shown in TC and SC. It was analyzed that the decline was mainly due to TC and SC. Finally, in the analysis of factors influencing efficiency, management area, population density, consignment project cost ratio, and financial independence were found to have an effect on all three measured efficiencies, and the agency equipment ratio only had a significant effect on scale efficiency. It was analyzed that the improvement of efficiency is possible through improvement of operating methods, and the reinforcement of the fiscal decentralization of the autonomous region is necessary to increase the efficiency.