“…The performance and efficiency of credit unions have been assessed in different dimensions by different authors, such as Vilela, Nagano, and Merlo (2007); Ferreira, Gonçalves, and Braga (2007); Cook and Bala (2007); Glass, Mckillop, and Rasaratnam (2010); Silva, Gollo, and Rodrigues (2013), Carvalho, Diaz, Bialoskorski Neto, and Kalatzis (2015) and Bittencourt, Bressan, Goulart, Bressan, Costa, and Lamounier (2017). Some of these studies proposed methods for evaluating efficiency through models of global efficiency, price efficiency, technical efficiency, among other approaches, but they do not use the separation of efficiency analysis between different models.…”