| 变量 | 整体 | 东部 | 中部 | 西部 |
| G | 0.007** (0.003) | 0.005* (0.003) | 0.008* (0.005) | 0.017 (0.018) |
| C | −0.082 (0.233) | −0.4* (0.223) | −1.297*** (0.349) | −0.587 (1.377) |
| Obs | 3059 | 974 | 851 | 693 |
| LM | 593.73*** | 209.62*** | 127.38*** | 102.32*** |
| F | 841.70 | 135.61 | 68.78 | 90.1 |
| Hansen | 0.94 | 0.36 | 0.13 | 0.15 |