| (1) | (2) | (3) | (4) |
变量 | 中心城市 | 非中心城市 | 都市圈 | 非都市圈 |
Market | 0.0412*** | 0.0994*** | 0.0127** | 0.0011 |
| (0.0137) | (0.0057) | (0.0052) | (0.0199) |
financial | 0.0547** | 0.0009*** | 0.0012*** | 0.0000 |
| (0.0254) | (0.0003) | (0.0003) | (0.0006) |
hc | 0.0158 | 0.0400*** | 0.0213* | 0.0160 |
| (0.0239) | (0.0041) | (0.0117) | (0.0195) |
retail | 0.1427 | −0.0276 | 0.0092 | 0.0732 |
| (0.3579) | (0.0309) | (0.0765) | (0.0452) |
gov | 2.6068*** | 0.0016 | 0.4341*** | −0.0828 |
| (0.4696) | (0.0465) | (0.1444) | (0.1177) |
Constant | −0.5364* | −0.3530*** | 0.3805** | −0.1111 |
| (0.2996) | (0.0486) | (0.1648) | (0.1899) |
固定效应 | 控制 | 控制 | 控制 | 控制 |
Observations | 50 | 330 | 250 | 130 |
R-squared | 0.9111 | 0.7203 | 0.9634 | 0.7359 |