Template-Type: ReDIF-Paper 1.0 Author-Name: Asai, M. Author-Name-Last: Asai Author-Name-First: Manabu Author-Person: pas73 Author-Name: McAleer, M.J. Author-Name-Last: McAleer Author-Name-First: Michael Author-Person: pmc90 Title: Bayesian Analysis of Realized Matrix-Exponential GARCH Models Abstract: The paper develops a new realized matrix-exponential GARCH (MEGARCH) model, which uses the information of returns and realized measure of co-volatility matrix simultaneously. The paper also considers an alternative multivariate asymmetric function to develop news impact curves. We consider Bayesian MCMC estimation to allow non-normal posterior distributions. For three US nancial assets, we compare the realized MEGARCH models with existing multivariate GARCH class models. The empirical results indicate that the realized MEGARCH models outperform the other models regarding in-sample and out-of-sample performance. The news impact curves based on the posterior densities provide reasonable results. Length: 27 Creation-Date: 2018-01-01 File-URL: https://repub.eur.nl/pub/104259/EI2018-07.pdf File-Format: application/pdf Series: RePEc:ems:eureir Number: 2018-005/III Number: EI 2018-07 Classification-JEL: C11, C32 Keywords: Multivariate GARCH, Realized Measure, Matrix-Exponential, Bayesian Markov, chain Monte Carlo method, Asymmetry Handle: RePEc:ems:eureir:104259