Contribution of the Cointegration Theory to the Study of the Volatility of Financial Markets: Case of the Casablanca Stock Exchange. European Journal of Marketing and Economics, [S. l.], v. 5, n. 2, p. 24–34, 2022. DOI: 10.26417/ejme.v1i1.p84-91. Disponível em: https://revistia.com/index.php/ejme/article/view/1290. Acesso em: 29 dec. 2025.