变量 | 观测值 | 均值 | 标准差 | 最小值 | 最大值 |
EVA | 1030 | 8.87e+08 | 3.24e+09 | −1.72e+09 | 2.38e+10 |
Tobin’s Q | 1030 | 1.889 | 1.137 | 0.849 | 6.681 |
RDI | 1030 | 3.505 | 3.39 | 0.03 | 20.46 |
OC | 1030 | 0.388 | 0.141 | 0.129 | 0.731 |
Firm size | 1030 | 23.113 | 1.452 | 20.287 | 27.424 |
Debt ratio | 1030 | 0.48 | 0.192 | 0.129 | 0.908 |
TAT | 1030 | 0.681 | 0.403 | 0.144 | 2.145 |
Cash | 1030 | 0.144 | 0.1 | 0.015 | 0.496 |
TAG | 1030 | 0.101 | 0.16 | −0.19 | 0.791 |
Duality | 1030 | 0.087 | 0.283 | 0 | 1 |
OBH | 1030 | 0.646 | 0.549 | 0.047 | 2.559 |