Co-Integration and Causality between Equity and Commodity Futures: Implications for Portfolio Diversification. Global Journal of Management and Business Research, [S. l.], v. 14, n. 23, p. 35–44, 2014. Disponível em: https://journalofbusiness.org/index.php/GJMBR/article/view/. Acesso em: 18 oct. 2026.