低碳试点政策对城市碳排放绩效的影响评估及机制分析

周迪, 周丰年, 王雪芹

Impact of low-carbon pilot policy on the performance of urban carbon emissions and its mechanism

Di ZHOU, Fengnian ZHOU, Xueqin WANG

表2 倾向得分匹配前后各变量的平衡性检验

Table 2 Balance test of variables before and after propensity score matching

变量 匹配前后 实验组均值 对照组均值 t值 P值 lnrgdp 匹配前 10.396 10.094 1.950* 0.053 匹配后 10.396 10.341 0.340 0.755 lnene 匹配前 1.639 1.607 0.170 0.864 匹配后 1.639 1.586 0.220 0.826 lnwage 匹配前 10.384 10.223 2.660*** 0.008 匹配后 10.387 10.367 0.260 0.794 lnpop 匹配前 5.926 5.882 0.260 0.794 匹配后 5.926 5.881 0.200 0.841 lnsec 匹配前 3.909 3.948 -0.770 0.441 匹配后 3.909 3.920 -0.200 0.844 lnthi 匹配前 3.646 3.497 2.540** 0.015 匹配后 3.646 3.621 0.360 0.741