“…The empirical literature on the relation between the budget deficit and the external deficit presents different results regarding the existence of causality between both types of deficits and the direction of causality. Abell (1990), Rosenweig and Tallman (1993), Vamvoukas (1999), Piersanti (2000), Salvatore (2006), Beetsma et al (2008), Daly and Siddiki (2009), Forte and Magazzino (2013), Trachanas and Katrakilidis (2013) and Afonso et al, (2018) all provide empirical support for the Twin Deficit Hypothesis, i.e., that the budget deficit causes the external deficit. On the contrary, there is no causal relationship between deficits in Algieri (2013), which validates the Ricardian Equivalence Hypothesis.…”