de Azevedo Couto Firme, Vinícius, and Joanílio Rodolpho Teixeira. “Index of Macroeconomic Performance for a Subset of Countries: A Kaldorian Analysis from the Magic Square Approach Focusing on Brazilian Economy in the Period 1997-2012”. Panoeconomicus, vol. 61, no. 5, Oct. 2014, pp. 527-42, https://doi.org/10.2298/PAN1405527F.