Estimating the Volatility of Brazilian Equities using Garch-Type Models and High-Frequency Volatility Measures. Global Journal of Management and Business Research, [S. l.], v. 14, n. 23, p. 1–13, 2014. Disponível em: https://journalofbusiness.org/index.php/GJMBR/article/view/. Acesso em: 18 oct. 2026.