| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
变量 | N | mean | sd | min | p25 | p50 | p75 | max |
RD1 | 16,148 | 17.271 | 1.272 | 13.435 | 16.610 | 17.439 | 18.162 | 19.912 |
RD2 | 16,148 | 0.034 | 0.028 | 0.000 | 0.011 | 0.032 | 0.046 | 0.167 |
RD3 | 16,148 | 0.017 | 0.013 | 0.000 | 0.006 | 0.016 | 0.025 | 0.062 |
Academic | 16,148 | 0.172 | 0.378 | 0.000 | 0.000 | 0.000 | 0.000 | 1.000 |
Soe | 16,148 | 0.696 | 0.460 | 0.000 | 0.000 | 1.000 | 1.000 | 1.000 |
Dul | 16,148 | 0.277 | 0.447 | 0.000 | 0.000 | 0.000 | 1.000 | 1.000 |
Size | 16,148 | 21.828 | 0.992 | 19.807 | 21.115 | 21.756 | 22.444 | 24.607 |
Lev | 16,148 | 0.406 | 0.199 | 0.056 | 0.247 | 0.393 | 0.546 | 0.916 |
ROA | 16,148 | 0.042 | 0.060 | -0.192 | 0.015 | 0.040 | 0.072 | 0.210 |
Growth | 16,148 | 0.177 | 0.366 | -0.490 | -0.014 | 0.117 | 0.281 | 2.057 |
Board | 16,148 | 2.127 | 0.191 | 1.609 | 1.946 | 2.197 | 2.197 | 2.708 |
Indep | 16,148 | 0.372 | 0.051 | 0.250 | 0.333 | 0.333 | 0.429 | 0.571 |
FirmAge | 16,148 | 2.772 | 0.372 | 0.693 | 2.565 | 2.833 | 3.045 | 3.555 |
Age | 16,148 | 3.954 | 0.146 | 3.135 | 3.871 | 3.970 | 4.043 | 4.443 |
Gender | 16,148 | 0.947 | 0.223 | 0.000 | 1.000 | 1.000 | 1.000 | 1.000 |
Degree | 16,148 | 3.299 | 0.871 | 1.000 | 3.000 | 3.000 | 4.000 | 5.000 |
Site | 16,148 | 1.826 | 0.896 | 0.000 | 1.000 | 2.000 | 2.000 | 3.000 |