| VARIABLES | (1) HS | (2) HM | (3) HL | (4) HI |
| U | 0.0028*** | 0.0017*** | 0.0006 | 0.0020 |
| (0.0010) | (0.0006) | (0.0007) | (0.0016) | |
| D | 0.0041*** | 0.0015** | −0.0004 | −0.0018 |
| (0.0012) | (0.0007) | (0.0007) | (0.0017) | |
| C | Yes | Yes | Yes | Yes |
| Constant | 0.1210*** | 0.0146*** | 0.1200*** | 0.4600*** |
| (0.0094) | (0.0052) | (0.0100) | (0.0210) | |
| Observations | 132,630 | 132,836 | 132,67 | 114,191 |
| R-squared | 0.1250 | 0.1200 | 0.1980 | 0.2010 |