References Baba, Y., R.F. Engle, D. Kraft and K.F. Kroner (1985), Multivariate simultaneous generalized ARCH, Unpublished manuscript, Department of Economics, University of California, San Diego, CA, USA. Black, F. (1976), Studies of stock market volatility changes, in Proceedings of the American Statistical Association, Business and Economic Statistics Section, Washington, DC, USA, 1976, pp. 177-181. Chang, C.-L. Y.-Y. Li and M. McAleer (2015), Volatility spillovers between energy and agricultural markets: A critical appraisal of theory and practice, Econometric Institute Research Paper EI2015-18, Erasmus School of Economics, Erasmus University Rotterdam. Comte, F. and O. Lieberman (2003), Asymptotic theory for multivariate GARCH processes, Journal of Multivariate Analysis, 84, 61-84. Engle, R.F. and V.K. Ng (1993), Measuring and testing the impact of news on volatility, Journal of Finance, 48, 1749-1778 Engle, R.F. and K.F. Kroner (1995), Multivariate simultaneous generalized ARCH, Econometric Theory, 11, 122-150. Drost, F. and T. Nijman (1993), Temporal aggregation of GARCH processes, Econometrica, 61, 909-927. Gallant, A.R., P.E. Rossi and G. Tauchen (1993), Nonlinear dynamic structures, Econometrica, 61, 871-907. Hafner, C.M. and H. Herwartz (2006), Volatility impulse responses for multivariate GARCH models: An exchange rate illustration, Journal of International Money and Finance, 25, 719-740. Jeantheau, T. (1998), Strong consistency of estimators for multivariate ARCH models, Econometric Theory, 14, 70-86. Koop, G., M.H. Pesaran and S.M. Potter (1996). Impulse response analysis in nonlinear multivariate models. Journal of Econometrics, 74, 119-147. Lin, W.-L. (1997), Impulse response function for conditional volatility in GARCH models, Journal of Business & Economic Statistics, 15, 15-25. McAleer, M., S. Hoti and F. Chan (2009), Structure and asymptotic theory for multivariate asymmetric conditional volatility, Econometric Reviews, 28, 422-440. Sims, C. (1980), Macroeconomics and reality, Econometrica 48, 1-48. Tauchen, G., H. Zhang, and M. Liu (1996), Volume, volatility and leverage: A dynamic analysis, Journal of Econometrics, 74, 177-208.