变量 | (1) | (2) | (3) |
Lnsir | P_in | Lnsir | |
Lntax | 0.187*** | 0.055*** | 0.122*** |
(0.040) | (0.019) | (0.023) | |
P_in |
|
| 1.156*** |
|
| (0.192) |