变量/模型 | (1) | (2) | (3) | (4) | (5) | (6) |
system | 0.008 | 0.011 | 0.027* | 0.032* | 0.032** | 0.039** |
(0.011) | (0.011) | (0.015) | (0.016) | (0.016) | (0.016) | |
urb | 0.017 | 0.012 | −0.018 | −0.031 | −0.037 | −0.026 |
(0.036) | (0.036) | (0.049) | (0.049) | (0.050) | (0.051) | |
gov |
| 0.005*** | 0.027*** | 0.027*** | 0.026*** | 0.027*** |
| (0.001) | (0.005) | (0.005) | (0.006) | (0.006) | |
human |
|
| −0.409 | −0.390 | −0.331 | −0.098 |
|
| (0.632) | (0.624) | (0.650) | (0.639) | |
mar |
|
|
| 0.018** | 0.021** | 0.020** |
|
|
| (0.009) | (0.009) | (0.008) | |
econo |
|
|
|
| 0.026 | 0.046** |
|
|
|
| (0.021) | (0.020) | |
elcinf |
|
|
|
|
| 0.040*** |
|
|
|
|
| (0.011) | |
infra |
|
|
|
|
| 0.047*** |
|
|
|
|
| (0.008) | |
年份固定效应 | 控制 | 控制 | 控制 | 控制 | 控制 | 控制 |
城市固定效应 | 控制 | 控制 | 控制 | 控制 | 控制 | 控制 |
常数项 | 0.021*** | 0.019*** | 0.012** | 0.010* | 0.009* | −0.037*** |
(0.003) | (0.003) | (0.005) | (0.005) | (0.005) | (0.011) | |
样本量 | 3922 | 3920 | 3364 | 3361 | 3347 | 3322 |
R2 | 0.247 | 0.249 | 0.250 | 0.254 | 0.255 | 0.270 |
F | 163.590 | 147.313 | 101.354 | 87.473 | 85.750 | 75.651 |