Beraich M, Fadali MA, Bakir Y. Impact of the covid-19 crisis on the moroccan stock market: Modeling the volatility of the m.a.s.i stock market index. IJAFAME [Internet]. 29 janv. 2021 [cité 27 oct. 2026];2(1):100-8. Disponible sur: https://revue.ijafame.com/index.php/home/article/view/89