| Model 1 | Model 2 |
Constant | −0.84 (−2.56) | −0.14 (−0.311) |
K/L ratio | 0.026 (11.36) | 0.027 (12.519) |
Dummy02 |
| −0.55 (−0.961) |
Dummy06 |
| −1.81 (−3.113) |
| 0.7072 | 0.7471 |