Table 2: Descriptive statistics and Unit root test with ADF and KPSS______________________________________________________________ Variable Mean Median Maximum Minimum Skewness Kurtosis Jarque-Bera Efp 4.547 4.636 5.839 2.583 -0.619 2.686 3.674 CE 19.193 19.348 22.511 15.681 -0.264 2.672 0.869 CDD 1231.963 1220.500 1480.000 1016.000 0.422 2.873 1.641 HDD 4536.185 4570.500 5029.000 5029.000 3778.000 3778.000 -0.719 0.388 1.801 4.592单位根测试水平δADF与截距截距和趋势截距和趋势结论___ _ lnefp -3.682* -1.798 -5.922* -6.795*混合LNCE -1.517 -1.517 -2.718 -2.718 -4.855* -5.55* -5.474* i(1)LNEFP -1.798 -5.922* -6.795 -7.390* -7.403* i(1)lnhdd -3.961* -6.425* -9.244* -9.145*混合LNGDP -3.230 ** 0.068 -3.531 ** -5.043* I(1) 0.161** 0.403 0.079 Mixed lncooling 0.933* 0.085 0.120 0.059 I (1) lnheating 0.867* 0.046 0.042 0.041 I (1) lnGdp 0.886* 0.226* 0.602** 0.164 Mixed
表 1:描述统计变量 LnGDP LnPC LnHC LnTO LnINF 平均值 15.227 13.818 1.702 29.329 59.423 中位数 15.200 13.736 1.734 24.258 51.078 最大值 16.394 15.235 2.124 55.794 159.830 最小值 14.197 12.597 1.285 12.219 9.737 标准差0.658 0.852 0.261 14.779 44.823 偏度 0.141 0.176 -0.048 0.468 0.885 峰度 1.811 1.670 1.687 1.730 2.683 Jarque-Bera 2.364 2.996 2.744 3.937 5.124 概率 0.307 0.224 0.254 0.140 0.077 总计 578.622 525.067 64.673 1114.509 2258.062 总计平方差16.029 26.876 2.515 8081.719 74335.350 观测值 38 38 38 38 38 来源:作者估计