
环境DEA模型改进及其在城市环境绩效评价中的应用
The Improvement of Environmental DEA Model and its Application in City Environmental Performance Evaluation
城市群;城市环境;环境绩效评价;规模报酬可变;技术异质性
City Cluster;City Environment;Environmental Performance Evaluation;Variable Returns to Scale;Technology Heterogeneity
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