Table 4 Covariance ratio for the variance–covariance matrix of estimated contemporary group fixed effects for three models and two relationship matrices (\(\mathbf{A}\) and \(\mathbf{H}\))
\({Var}(\hat{{\varvec{\upbeta }}})\) | |||
|---|---|---|---|
Model 1 | Model 2 | Model 3 | |
\(\mathbf{A}\) | |||
\({Var}(\hat{{\varvec{\upbeta }}})^{-1}\) | |||
Model 1 | 1 | 2.462 | 210.041 |
Model 2 | 0.406 | 1 | 85.239 |
Model 3 | 0.005 | 0.001 | 1 |
\(\mathbf{H}\) | |||
\({Var}(\hat{{\varvec{\upbeta }}})^{-1}\) | |||
Model 1 | 1 | 2.213 | 166.744 |
Model 2 | 0.452 | 1 | 75.354 |
Model 3 | 0.006 | 0.013 | 1 |