의사결정나무와 자료포락 분석을 이용한 공공기관 유형별 환경효율성에 대한 연구

This study aims to provide public sectors with eco-efficiency information. To implement the purposes of the study,environmental and economic variables of Eco-Efficiency were identified through decision tree model, then the relativeEco-Efficiencies of 243 public sectors were evaluated through input-oriented DEA (Data Envelopment Analysis) model. Specifically, the amount of public purchasing per a staff and the amount of energy use per a staff were consideredas input factors. Sales per a staff was considered as output factor. The result shows that most of the public sectors(94.2%) were evaluated as “inefficient” taking into consideration of average value, 0.501 from market-based publiccorporations, 0.288 from local public corporations, 0.28 from quasi-market-based public corporations, 0.269 fromfund-management-based quasi-governmental institutions, 0.09 from non-classified public institutions, and 0.078 fromcommissioned-service-based quasi-governmental institutions. Furthermore, it is possible to establish a plan for internalEco-Efficiency improvement based on information of the reference set. In order to improve the Eco-Efficiencyin the public sectors in the long term, environmental impacts of the overall public sectors' operations (e.g., energysaving, water saving, waste reduction, and purchasing of green products) needs to be properly proposed in considerationof BSC (Balanced Scorecard) indicators of public sectors.