| VARIABLES | (1) HS | (2) HM | (3) HL | (4) HI |
| U | 0.0035*** | 0.0018*** | 0.0005 | 0.0020 |
| (0.0010) | (0.0006) | (0.0006) | (0.0013) | |
| D | 0.0045*** | 0.0020*** | −0.0002 | −0.0021 |
| (0.0012) | (0.0006) | (0.0006) | (0.0016) | |
| C | Yes | Yes | Yes | Yes |
| Constant | 0.1190*** | 0.0130*** | 0.1180*** | 0.4640*** |
| (0.0089) | (0.0048) | (0.0094) | (0.0190) | |
| Observations | 154,859 | 155,076 | 154,844 | 131,769 |
| R-squared | 0.1150 | 0.1110 | 0.1840 | 0.1910 |