| 模型1 | 模型2 | 模型3 |
lninc(2015) | 0.0144** | 0.003 |
|
| (5.62) | (1.31) |
|
lninc(2017) | 0.19** | 0.035 |
|
| (0.073) | (0.087) |
|
health(2015) |
|
| 0.05*** |
|
|
| (17.08) |
health(2017) |
|
| 0.34*** |
|
|
| (0.09) |