our GARCH-t

bayesGARCH package

${\alpha }_0$

N (0, 100)

a bivariate truncated Normal distribution

${\alpha }_1$

N (0, 100)

a bivariate truncated Normal distribution

$\beta$

N (0, 100)

a univariate truncated Normal distribution

$\psi$

U (2, 100)

a translated Exponential distribution