ZEVALLOS, Mauricio; CARPIO, Carlos del. Metal Returns, Stock Returns and Stock Market Volatility. Economia, [S. l.], v. 38, n. 75, p. 101–122, 2015. DOI: 10.18800/economia.201501.003. Disponível em: https://revistas.pucp.edu.pe/index.php/economia/article/view/13734. Acesso em: 12 dec. 2025.