Can we specify mean equation in ARMA form or can we add other regressors in mean equation of GARCH family models ?
See these links:
https://www.researchgate.net/post/Is_it_necessary_to_consider_mean_equation_coefficients_significance_while_testing_for_any_GARCH_EGARCH_or_BEKK_GARCH_model
https://www.researchgate.net/post/Proper-specification-of-GARCH-model-in-Eviews
@Remal thank you, its really helpful
Please take a look at: https://online.stat.psu.edu/stat510/lesson/11/11.1
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