| Model (1) | |
| RANK | −0.154 |
| (0.001)*** | |
| SD | −2.402 |
| (0.000)*** | |
| Family | −0.000 |
| (0.593) | |
| lnage | −0.012 |
| (0.026)** | |
| lnsize | 0.007 |
| (0.430) | |
| year | Yes |
| N | 1364 |
| Prob > F | 0.000 |
| Adj R-square | 0.061 |