变量 | y1 | y2 | y3 | y4 |
x1 | −0.043*** | −0.034*** | −0.03*** | −0.041*** |
| (0.005) | (0.005) | (0.007) | (0.005) |
N | 5189 | 5189 | 2796 | 5189 |
R2 | 0.292 | 0.232 | 0.152 | 0.182 |
x2 | −0.026*** | −0.008* | −0.019*** | −0.02*** |
| (0.005) | (0.005) | (0.007) | (0.005) |
N | 5189 | 5189 | 2796 | 5189 |
R2 | 0.292 | 0.226 | 0.15 | 0.176 |
x3 | 0.011* | 0.013* | 0.022** | 0.028*** |
| (0.006) | (0.006) | (0.01) | (0.007) |
N | 5189 | 5189 | 2796 | 5189 |
R2 | 0.287 | 0.227 | 0.149 | 0.176 |