变量 | 模型(1) | 模型(2) | 模型(3) | 模型(4) | 模型(5) | 模型(6) |
GI | 0.00371* (0.00201) | 0.0362** (0.0150) | 0.00436** (0.00168) | 0.0396* (0.0189) | 0.00371** (0.00159) | 0.0362** (0.0183) |
Lev | −0.0472*** (0.00361) | −0.0496*** (0.00447) | −0.0485*** (0.00252) | −0.0543*** (0.00411) | −0.0472*** (0.00269) | −0.0496*** (0.00396) |
Ros | 0.186*** (0.00830) | 0.196*** (0.00863) | 0.186*** (0.00714) | 0.193*** (0.00948) | 0.186*** (0.00734) | 0.196*** (0.00918) |
Growth | 0.00809*** (0.00139) | 0.00872*** (0.00134) | 0.00788*** (0.00104) | 0.00850*** (0.000868) | 0.00809*** (0.00106) | 0.00872*** (0.000847) |
Sub |
| 0.00154*** (0.000174) |
| 0.00166*** (0.000123) |
| 0.00154*** (0.000128) |
GI ´ Sub |
| −0.00218** (0.000888) |
| −0.00233* (0.00114) |
| −0.00218* (0.00112) |
size |
| 0.000814 (0.000794) |
| 0.00136 (0.000897) |
| 0.000814 (0.000877) |
age |
| −0.00113*** (0.000171) |
|
|
| −0.00113*** (0.000224) |
Year | 控制 | 控制 | 控制 | 控制 | 控制 | 控制 |
N R2 | 3731 0.471 | 3731 0.516 | 3731 0.473 | 3731 0.512 | 3731 | 3731 |