|
| 模型(2) | 模型(3) | |
|
| ROA | ROA | |
| ICQ | 0.138*** | 0.114*** | |
|
| (21.81) | (12.57) | |
| RD |
| 6.530*** | |
|
|
| (2.73) | |
| RD × ICQ |
| 1.034*** | |
|
|
| (2.82) | |
| SIZE | 0.008*** | 0.008*** | |
|
| (14.98) | (16.07) | |
| LEV | −0.101*** | −0.100*** | |
|
| (−31.11) | (−30.63) | |
| Grow | 0.002*** | 0.002*** | |
|
| (3.29) | (2.65) | |
| OCF | 0.306*** | 0.302*** | |
|
| (35.16) | (34.63) | |
| _cons | −1.000*** | −0.857*** | |
|
| (−24.28) | (−14.53) | |
| N | 11440 | 11440 | |
| adj.R2 | 0.360 | 0.365 | |
| F | 262.553 | 238.769 | |