| Happiness | Coef. | Std. Err. | T | P > t | [95% Conf. | Interval] |
| Competition | 0.034 | 0.004 | 7.59 | 0.000 | 0.025 | 0.0433 |
| Competition square | −0.003 | 0.0004 | −6.84 | 0.000 | −0.004 | −0.002 |
| Female | −0.016 | 0.006 | −2.69 | 0.007 | −0.028 | −0.004 |
| Age | 0.002 | 0.0001 | 10.59 | 0.000 | 0.001 | 0.002 |
| Education | 0.001 | 0.001 | 1.43 | 0.154 | −0.0007 | 0.004 |
| Employment | 0.009 | 0.001 | 6.37 | 0.000 | 0.006 | 0.012 |
| Social Class | 0.086 | 0.003 | 22.50 | 0.000 | 0.079 | 0.094 |
| Income level | −0.047 | 0.001 | −28.98 | 0.000 | −0.050 | −0.044 |
| _cons | 1.682 | 0.027 | 61.58 | 0.000 | 1.629 | 1.736 |