| 门槛变量 | 人口城镇化水平 | ||
|---|---|---|---|
| 全国 | 大城市 | 中小城市 | |
| 0.0038* | 0.0062** | 0.0072** | |
| (0.0021) | (0.0027) | (0.0030) | |
| -0.0012 | 0.0003 | -0.0020 | |
| (0.0035) | (0.0037) | (0.0028) | |
| 0.0033* | 0.0003 | 0.0030 | |
| (0.0019) | (0.0040) | (0.0030) | |
| 0.0138*** | 0.0120*** | 0.0118*** | |
| (0.0034) | (0.0042) | (0.0021) | |
| 常数项 | 4.3847*** | 4.9649*** | 4.2975*** |
| (0.1612) | (0.3445) | (0.1531) | |
| R2 | 0.9793 | 0.9832 | 0.9796 |