| (1) | (2) | (3) | (4) |
处理组*处理期的交互项 | 21.985*** | 8.278*** | 2.527 | −1.862 |
(11.58) | (4.53) | (1.22) | (−0.60) | |
受教育年限 |
| 2.090** | 2.914*** | 2.788*** |
| (2.18) | (3.09) | (2.96) | |
地区产业结构 |
| −5.747*** | −5.977*** | −5.556*** |
| (−3.64) | (−4.08) | (−3.80) | |
地区基础设施 |
| −0.926** | −0.843** | −0.549 |
| (−2.22) | (−2.11) | (−1.30) | |
地区经济发展水平 |
| 23.035*** | 16.224*** | 16.482*** |
| (5.48) | (3.57) | (3.57) | |
地区对外开放程度 |
| 9.750*** | 6.590* | 8.628** |
| (2.73) | (1.82) | (2.36) | |
劳动力工资水平 |
| −11.247** | −0.122 | −5.355 |
| (−2.24) | (−0.02) | (−0.98) | |
处理组 |
|
| 9.414*** | 11.950*** |
|
| (5.02) | (4.84) | |
处理期 |
|
|
| 7.615** |
|
|
| (2.13) | |
常数项 | 60.425*** | −65.468 | −123.215*** | −75.847* |
(42.37) | (−1.60) | (−3.07) | (−1.73) | |
N | 248 | 248 | 248 | 248 |
R2 | 0.271 | 0.661 | 0.687 | 0.695 |