SIERRA, L. P.; GIRóN, L. E.; OSORIO, C. Has Financialization in Commodity Markets Affected the Predictability in Metal Markets? The Efficient Markets Hypotheses for Metal Returns. International Journal of Economics and Financial Issues, [S. l.], v. 7, n. 4, p. 15–22, 2017. Disponível em: https://www.econjournals.com/index.php/ijefi/article/view/4695. Acesso em: 27 apr. 2024.