Emenogu, N.G., Adenomon, M.O. and Nweze, N.O. (2018) “On the performance of GARCH family models using the root mean square error and the mean absolute error”, Benin Journal of Statistics, 1(1), pp. 45– 60. Available at: https://www.bjs-uniben.org/index.php/home/article/view/7 (Accessed: 16 December 2025).