$\theta$

MSE of $\widehat{\beta }$

MSE of ${\widehat{\beta }}_{B\mathrm{.}SE}$

MSE of ${\widehat{\beta }}_{B\mathrm{.}HT}$

0.50000

0.01124360

0.0005077610

0.000507356

1.74410

0.01105730

0.0005163560

0.000516057

400000

0.01096100

0.0005190550

0.000518632