变量 | 观测值 | 均值 | 中位数 | 标准差 | 最小值 | 最大值 |
Gtfp | 4879 | 0.674 | 0.611 | 0.132 | 0.532 | 1 |
Power | 4879 | 1.230 | 1 | 0.738 | 0 | 3 |
RD | 4879 | 0.0430 | 0.0350 | 0.0410 | 0 | 0.763 |
First | 4879 | 0.325 | 0.302 | 0.140 | 0.0300 | 0.891 |
Age | 4879 | 17.61 | 18 | 5.219 | 4 | 39 |
Pattern | 4879 | 0.420 | 0 | 0.494 | 0 | 1 |
Xjldx | 4879 | 0.0870 | 0.0790 | 0.214 | −2.007 | 11.39 |
Asset | 4879 | 0.238 | 0.212 | 0.139 | 0.00400 | 0.810 |
Profit | 4879 | 0.0410 | 0.0360 | 0.0790 | −1.405 | 0.456 |