Fajardo, José, José Renato Haas Ornelas, and Aquiles Rocha de Farias. “ Eatimating Risk Aversion, Risk-Neutral and Real-World Densities Using Brasilian Real Currency Options ”. Economia Aplicada 16, no. 4 (December 1, 2012): 567–577. Accessed March 14, 2025. https://revistas.usp.br/ecoa/article/view/53110.