Exchange rate exposure of firms and the demand for foreign exchange derivatives in Brazil: did hedge or speculatiom matter? . Economia Aplicada, [S. l.], v. 16, n. 4, p. 613–641, 2012. DOI: 10.1590/S1413-80502012000400004. Disponível em: https://www.revistas.usp.br/ecoa/article/view/53112.. Acesso em: 2 maio. 2024.