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中国能源影子价格和能源环境效率省际差异
闫庆友1(), 桂增侃1(), 张文华1, 陈立忠2
The heterogeneity of regional energy shadow price and energy environment efficiency in China
YAN Qingyou1(), GUI Zengkan1(), ZHANG Wenhua1, CHEN Lizhong2

图4. 2000—2017年群组前沿下中国地区能源影子价格变化趋势

Figure 4. Trends of energy shadow price under group frontier in China, 2000-2017