| 变量 | 东部 | 中部 | 西部 | |||
| (1) | (2) | (1) | (2) | (1) | (2) | |
| LQ | 0.019* (0.01) | 0.022** (0.01) | 0.034* (0.02) | 0.034** (0.02) | 0.142 (0.089) | 0.04 (0.079) |
| Gdp | −0.001 (0.004) | −0.004 (0.004) | −0.031*** (0.01) | −0.031*** (0.01) | −0.034 (0.027) | −0.032 (0.028) |
| Hum | −0.008** (0.004) | −0.006* (0.004) | — | 0.001 (0.004) | −0.001 (0.011) | −0.002 (0.011) |
| Wage | 0.033 (0.022) | 0.033 (0.021) | 0.177*** (0.047) | 0.179*** (0.046) | — | 0.098** (0.049) |
| Inf | 0.025*** (0.006) | 0.022*** (0.006) | −0.043*** (0.013) | −0.042*** (0.013) | 0.08** (0.033) | 0.073* (0.035) |
| Rate | — | −0.004*** (0.001) | −0.005*** (0.001) | −0.005*** (0.001) | −0.002 (0.002) | −0.001 (0.002) |
| C | −0.451** (0.186) | −0.393** (0.177) | −1.150*** (0.053) | −1.18*** (0.36) | 0.361 (0.363) | −0.771 (0.542) |
| Obs | 1172 | 1172 | 1044 | 1037 | 568 | 564 |
| LM | 385.2*** | 383.87*** | 305.19*** | 297.93*** | 86.9*** | 86.78*** |
| F | 2882.38 | 2878.62 | 1143.9 | 1124.91 | 87.606 | 86.899 |
| Hansen | 0.7 | 0.59 | 0.16 | 0.16 | 0.92 | 0.83 |