“双循环”视阈下我国稀土产业价值链的逻辑构成与重构路径研究
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叶前林,李佳欣,赖丹
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Research on the Logical Composition and Reconstruction Path of China’s Rare Earth Industry Value Chain from the Perspective of Dual Circulation
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Qianlin YE,Jiaxin LI,Dan LAI
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表3 2013—2022年我国稀土产业上、中、下游环节动态效率
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Table 3 Dynamic efficiency of upstream，midstream and downstream links in China’s rare earth industry from 2013 to 2022
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| 环节 | 指标 | 2013—2014 | 2014—2015 | 2015—2016 | 2016—2017 | 2017—2018 | 2018—2019 | 2019—2020 | 2020—2021 | 2021—2022 | 几何 均值 |
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| 上游 | tfpch | 1.149 | 1.259 | 0.514 | 1.296 | 1.053 | 1.172 | 1.186 | 0.611 | 1.487 | 1.028 | | pech | 1.011 | 1.017 | 1.000 | 1.000 | 0.994 | 1.007 | 1.000 | 0.972 | 1.029 | 1.003 | | sech | 1.031 | 0.999 | 1.021 | 0.909 | 1.083 | 1.013 | 1.002 | 0.983 | 1.001 | 1.004 | | 中游 | tfpch | 1.019 | 0.980 | 0.968 | 1.296 | 0.915 | 1.086 | 0.798 | 0.969 | 1.078 | 1.004 | | pech | 1.002 | 1.009 | 0.977 | 0.974 | 1.018 | 0.984 | 1.001 | 1.008 | 1.040 | 1.001 | | sech | 1.052 | 0.956 | 1.024 | 0.979 | 0.888 | 1.111 | 1.002 | 1.050 | 1.023 | 1.007 | | 下游 | tfpch | 1.046 | 1.055 | 0.974 | 1.037 | 0.937 | 0.915 | 1.694 | 0.803 | 1.129 | 1.044 | | pech | 0.962 | 0.986 | 1.040 | 1.009 | 0.990 | 1.027 | 0.945 | 0.952 | 1.107 | 1.001 | | sech | 1.007 | 0.953 | 1.028 | 1.008 | 1.050 | 0.976 | 0.876 | 1.095 | 0.973 | 0.994 |
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