“…In Brazil, the issue of the sustainability of public debt has aroused strong interest amongst economic analysts, since it plays a central role in the dis-1 Other criticisms of Bohn (2007) regarding the approach based on unit root tests are their low power and sensitivity to sample size, possible non-stationarity related to factors that are not related to the fiscal policy carried out and the fact that, under conventional formulations, structural breaks -frequent in emerging economies -are not allowed. 2 For additional references, see, for international cases: Davig and Leeper (2006), Penalver (2006), Thwaites (2006), Uctum, Thurston and Uctum (2006), Adedeji and Williams (2007), Khalid et al (2007), Greiner and Kauermann (2007), Nguyen (2007), Budina and Wijnbergen (2008), Turrini (2008), Afonso and Hauptmeier (2009), Song (2009), Egert (2010), Stoica and Leonte (2010), Burger et al (2011), Mutuku (2015); and, for the Brazilian case: Luporini (2001), Aguiar (2007), Lopes (2007), Dill (2012) and Jesus (2013).…”