A STUDY ON THE RETURN VOLATILITY OF THE COFFEE BEANS PRICE USING ARCH MODELS. Colloquium Exactarum. ISSN: 2178-8332, [S. l.], v. 11, n. 2, p. 101–110, 2019. Disponível em: https://journal.unoeste.br/index.php/ce/article/view/2707. Acesso em: 25 dez. 2024.