R. J, Andr, and Alberto Garrido. “Volatility and Price Transmission from World Prices to the Ecuadorian Coffee Market”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 35, no. 1 (August 2, 2017): 155–170. Accessed October 6, 2025. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/7530.