| (1) | (2) |
| | model1 | model2 |
Sub_w | 8.5786*** | 6.9974** |
| | (2.6955) | (2.8076) |
| PG | 0.0322 | -0.0022 |
| | (0.0380) | (0.0417) |
| Sub_wPG | | 20.1573** |
| | | (10.0243) |
| _cons | 0.4555*** | 0.4584*** |
| (0.0119) | (0.0120) |
| N | 16068 | 16068 |
adj. R2 | 0.0005 | 0.0007 |
Standard errors in parentheses
* p < 0.1, ** p < 0.05, ***p < 0.01
如图所示,这是什么问题呢?该怎么解决呢?