| (1) | (2) | (3) | (4) |
| fuel | fuel | fuel | fuel |
internet | 0.716*** | 0.630*** | 0.631*** | 0.596*** |
| (0.177) | (0.188) | (0.188) | (0.191) |
sex |
| −0.272 | −0.267 | −0.315* |
|
| (0.177) | (0.178) | (0.181) |
age |
| 0.002 | 0.002 | 0.004 |
|
| (0.005) | (0.005) | (0.006) |
edu |
| −0.014 | −0.014 | −0.020 |
|
| (0.064) | (0.065) | (0.065) |
healthy |
| 0.118** | 0.117** | 0.133** |
|
| (0.051) | (0.051) | (0.052) |
security |
|
| −0.005 | −0.009 |
|
|
| (0.020) | (0.020) |
people |
|
| 0.040 | 0.032 |
|
|
| (0.081) | (0.083) |
level |
|
|
| −0.001*** |
|
|
|
| (0.000) |
高山 |
|
|
| −0.463 |
|
|
|
| (0.419) |
平原 |
|
|
| −0.740** |
|
|
|
| (0.349) |
常数项 | −0.830*** | −1.614*** | −1.663*** | −0.793 |
| (0.138) | (0.505) | (0.616) | (0.673) |
N | 580 | 580 | 580 | 580 |
Pseudo R2 | 0.0216 | 0.0323 | 0.0326 | 0.0509 |
地区固定效应 | Yes | Yes | Yes | Yes |