From the results in Table A1, we can see that the mean value of the residuals is close to zero and standard deviation is close to 1. TheLjung-Box statistics implies there is no significant autocorrelation in the residuals. All of the results imply that the residuals are similar towhite noise. Although the results of Jarque-Bera test and QQ plot imply deviation from the assumption of normal distribution, theproperly normalized sum of the residuals tends toward a normal distribution according to the central limit theorem. The theorem ofQMLE also implies asymptotic consistency of the estimated parameters.