中国能源影子价格和能源环境效率省际差异
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The heterogeneity of regional energy shadow price and energy environment efficiency in China
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图1. 2000—2017年共同前沿和群组前沿下中国省际能源环境效率值对比图 |
Figure 1. Energy environment efficiency under group-frontier and meta-frontier, 2000-2017 |
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