变量 | Obs | Mean | Std.Dev | Min | Max |
LnSGA | 12,730 | 0.0512 | 0.257 | −0.672 | 0.975 |
LnS-Cost | 12,730 | 0.0652 | 0.392 | −1.453 | 1.454 |
LnA-Cost | 12,730 | 0.0312 | 0.293 | −0.970 | 0.915 |
LnSales | 12,730 | 0.135 | 0.258 | −0.611 | 1.202 |
ICQ | 12,730 | 6.482 | 0.125 | 5.775 | 6.696 |
| 12,730 | 0.235 | 0.424 | 0 | 1 |
LEV | 12,730 | 0.408 | 0.190 | 0.0600 | 0.850 |
AI | 12,730 | 2.358 | 1.693 | 0.420 | 10.66 |
ROS | 12,730 | 0.106 | 0.0922 | 0 | 0.480 |