G. P. Zapata, “Empirical model of the behavior of the income velocity of money in Colombia, 1982 – 2001”, ecos.econ., vol. 7, no. 17, pp. 79–92, Apr. 2003, Accessed: Nov. 11, 2026. Available: https://publicaciones.eafit.edu.co/index.php/ecos-economia/article/view/1996