考虑碳排放成本的中国农业绿色生产率变化
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展进涛, 徐钰娇, 葛继红
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Change in agricultural green productivity in China considering the cost of carbon emissions
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Jintao ZHAN, Yujiao XU, Jihong GE
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表3 SFA模型估计结果 |
Table 3 Estimation results of stochastic frontier analysis (SFA) model |
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自变量 | GTFP模型 | | TFP模型 | 估计系数 | 标准误 | 伴随概率 | 估计系数 | 标准误 | 伴随概率 | t | -0.269*** | 0.088 | 0.002 | | -0.186*** | 0.066 | 0.005 | 0.5 × t × t | 0.011*** | 0.002 | 0.000 | | 0.011*** | 0.002 | 0.000 | lnx1 | 1.559** | 0.654 | 0.017 | | 0.654* | 0.346 | 0.059 | lnx2 | -0.880 | 1.004 | 0.381 | | -0.926 | 0.743 | 0.213 | lnx3 | -2.204** | 0.984 | 0.025 | | -0.493 | 0.724 | 0.496 | lnx4 | 10.720*** | 1.941 | 0.000 | | 1.997** | 0.964 | 0.038 | lnx5 | 0.223 | 0.382 | 0.559 | | 0.407 | 0.256 | 0.112 | lnne | -7.329*** | 1.651 | 0.000 | | | | | lnpe | -1.684*** | 0.629 | 0.007 | | | | | t × lnx1 | 0.005 | 0.010 | 0.611 | | 0.041*** | 0.011 | 0.000 | t × lnx2 | -0.008 | 0.013 | 0.511 | | -0.023 | 0.014 | 0.104 | t × lnx3 | 0.005 | 0.010 | 0.601 | | -0.008 | 0.011 | 0.473 | t × lnx4 | 0.049** | 0.023 | 0.031 | | -0.007 | 0.013 | 0.568 | t × lnx5 | -0.001 | 0.005 | 0.791 | | 0.012** | 0.005 | 0.011 | t × lnne | -0.040* | 0.022 | 0.063 | | | | | t × lnpe | -0.005 | 0.008 | 0.570 | | | | | lnx1 × lnx1 | -0.021 | 0.091 | 0.822 | | 0.231** | 0.090 | 0.010 | lnx2 × lnx2 | 0.372*** | 0.121 | 0.002 | | 0.309** | 0.122 | 0.011 | lnx3 × lnx3 | 0.155*** | 0.043 | 0.000 | | 0.170*** | 0.054 | 0.002 | lnx4 × lnx4 | -0.624** | 0.290 | 0.031 | | 0.158 | 0.114 | 0.166 | lnx5 × lnx5 | 0.022** | 0.010 | 0.032 | | -0.014 | 0.011 | 0.203 | lnne × lnne | -0.597*** | 0.210 | 0.004 | | | | | lnpe × lnpe | -0.219*** | 0.051 | 0.000 | | | | | lnx1 × lnx2 | -0.404*** | 0.105 | 0.000 | | -0.298*** | 0.112 | 0.008 | lnx1 × lnx3 | 0.174** | 0.073 | 0.018 | | 0.050 | 0.082 | 0.542 | lnx1 × lnx4 | 0.525** | 0.211 | 0.013 | | -0.243** | 0.102 | 0.017 | lnx1 × lnx5 | -0.094** | 0.040 | 0.020 | | -0.080*** | 0.031 | 0.010 | lnx1 × lnne | -0.417** | 0.163 | 0.011 | | | | | lnx1 × lnpe | 0.123* | 0.068 | 0.068 | | | | | lnx2 × lnx3 | -0.088 | 0.159 | 0.579 | | -0.242 | 0.160 | 0.131 | lnx2 × lnx4 | -0.933*** | 0.259 | 0.000 | | -0.247 | 0.160 | 0.122 | lnx2 × lnx5 | 0.156*** | 0.048 | 0.001 | | 0.098** | 0.047 | 0.036 | lnx2 × lnne | 0.654*** | 0.170 | 0.000 | | | | | lnx2 × lnpe | -0.034 | 0.088 | 0.701 | | | | | lnx3 × lnx4 | -0.198 | 0.178 | 0.267 | | 0.072 | 0.166 | 0.664 | lnx3 × lnx5 | -0.072* | 0.042 | 0.089 | | -0.082** | 0.036 | 0.022 | lnx3 × lnne | 0.380*** | 0.107 | 0.000 | | | | | lnx3 × lnpe | -0.310*** | 0.075 | 0.000 | | | | | lnx4 × lnx5 | -0.103 | 0.075 | 0.167 | | 0.048 | 0.049 | 0.325 | lnx4 × lnne | 0.920** | 0.424 | 0.030 | | | | | lnx4 × lnpe | 0.710*** | 0.180 | 0.000 | | | | | lnx5 × lnne | 0.044 | 0.073 | 0.544 | | | | | lnx5 × lnpe | 0.053 | 0.043 | 0.211 | | | | | lnne × lnpe | -0.160 | 0.165 | 0.334 | | | | | Constant | -6.999 | 4.95 1 | 0.157 | | 2.209 | 2.150 | 0.304 | zitδ | -0.382* | 0.179 | 0.033 | | -0.602 | 0.500 | 0.228 | σ | 0.329*** | 0.042 | 0.000 | | 0.467*** | 0.108 | 0.000 | σv | 0.035*** | 0.010 | 0.001 | | 0.038*** | 0.012 | 0.002 | λ | 9.410*** | 0.043 | 0.000 | | 12.161*** | 0.103 | 0.000 | Wald统计量 | 65 734.680 | | 44 475.340 | Wald伴随概率 | 0.000 | | 0.000 | 对数似然函数 | 328.154 | | 197.709 | 观测数 | 496 | | 496 |
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