Talero-Sarmiento, L. H., Lamos-Díaz, H., & Garavito-Hernández, E. A. (2019). Testing the Weak Form of Efficient Market Hypothesis and Causality Analysis in Colombian Food Supply Centers. Apuntes Del Cenes, 38(67), 35–69. https://doi.org/10.19053/01203053.v38.n67.2019.8040