Silva, Cleiton Roberto da Fonseca, and Sinézio Fernandes Maia. “STUDYING THE BEHAVIOR OF ETHANOL PRICES IN SÃO PAULO: PERSISTENCE AND VOLATILITY AS A LONG MEMORY PROCESS”. Análise Econômica 30, no. 58 (December 7, 2012). Accessed May 9, 2025. https://seer.ufrgs.br/index.php/AnaliseEconomica/article/view/22990.