中国农业化肥施用技术效率演变特征及影响因素
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王萍萍, 韩一军, 张益
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Characteristics of change and influencing factors of the technical efficiency of chemical fertilizer use for agricultural production in China
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WANG Pingping, HAN Yijun, ZHANG Yi
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表3 随机前沿函数参数估计结果
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Table 3 Results of stochastic frontier function estimation
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变量 | 系数 | 标准误 | 变量 | 系数 | 标准误 | 常数项 | 2.517*** | 0.934 | | 0.185*** | 0.055 | | 0.198 | 0.174 | | 0.243*** | 0.040 | | -0.014 | 0.170 | | 0.131*** | 0.049 | | -0.585* | 0.308 | | -0.003 | 0.031 | ln F | 0.627*** | 0.173 | | -0.210*** | 0.032 | | 0.106*** | 0.010 | | -0.003 | 0.003 | | 0.081*** | 0.030 | | 0.001 | 0.002 | | 0.031 | 0.020 | | -0.012*** | 0.003 | | -0.018 | 0.046 | | 0.015*** | 0.002 | | -0.053*** | 0.016 | | -0.010*** | 0.001 | | -0.001*** | 0.000 | | -0.956** | 0.475 | | -0.220*** | 0.037 | log likelihood | 1032.515 |
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