Before revision:  Moment explosions are also characterized in the case of negatively, where \rho is the correlation coefficient, are shown for } correlated models, and partial results are obtained for positively correlated ones .
After revision:  Moment explosions are also characterized in the case of negatively, where \rho is the correlation coefficient, are shown for } correlated models, and partial results are obtained for the case where \gamma=(1-\rho^2)^{-1 .