G, J. L. C. ., G. . Loyola, and Y. . Portilla. “Banking Efficiency in Chile: A Profit Frontier Approach”. ECONOMÍA CHILENA, vol. 13, no. 3, Dec. 2010, pp. 33-65, https://www.xn--economachilena-5lb.cl/index.php/economiachilena/article/view/140.