变量 | (1) | (2) | (3) | (4) |
Lnsir | Lnsir | Lnsir | Lnsir | |
L.lnsir |
|
|
| 0.821*** |
|
|
| (0.066) | |
Lntax | 0.158*** |
| 0.187*** | 0.100** |
(0.041) |
| (0.040) | (0.047) | |
Size |
| −0.011 | −0.067 | −0.130** |
| (0.079) | (0.064) | (0.059) | |
Lab |
| 0.073** | 0.075** | 0.151*** |
| (0.034) | (0.032) | (0.052) | |
Dar |
| −0.436** | −0.425** | −0.416 |
| (0.173) | (0.165) | (0.292) | |
Roa |
| −0.851*** | −0.984*** | −1.462** |
| (0.181) | (0.181) | (0.611) | |
Tav |
| −0.298* | −0.162 | 0.179 |
| (0.173) | (0.149) | (0.306) | |
Pe |
| 0.004*** | 0.004*** | −0.004 |
| (0.001) | (0.001) | (0.005) | |
Tobin’Q |
| 0.022 | 0.023* | −0.001 |
| (0.014) | (0.014) | (0.055) | |
Rre |
| −0.072 | −0.093* | 0.188 |
| (0.051) | (0.050) | (0.231) | |
Ec |
| 0.197 | 0.008 | 0.309 |
| (0.428) | (0.372) | (0.409) | |
Os |
| −0.041 | −0.040 | 0.058 |
| (0.032) | (0.031) | (0.080) | |
Att |
| 0.036 | 0.088** | −0.022 |
| (0.049) | (0.044) | (0.030) | |
个体固定效应 | 控制 | 控制 | 控制 | \ |
时间固定效应 | 控制 | 控制 | 控制 | \ |
N | 3151 | 3159 | 3150 | 2409 |
R2 | 0.062 | 0.059 | 0.129 | \ |