| Variables | (1) |
| Total Income | |
| Low-Cost | 1.722 |
|
| (1.012) |
| Non-Low-Cost | 0.782*** |
|
| (0.220) |
| Constant | 38,627 |
|
| (23,713) |
| Observations | 10 |
| R-squared | 0.872 |