First Author:   Angelo Salton Federal University of Viçosa angelo.salton@ufv.br   Av. Purdue, s/n, Ed. Edson Potsch Magalhaes, 1st floor, room 105 Viçosa, 36570900, Brasil       https://angelosalton.github.io/ Second Author: Regis A. Ely Federal University of Pelotas regisaely@gmail.com   4th floor, 4th floor, Dept. of Economics Pelotas, 96010610, Brasil       http://regisely.com/