“…First, this study covers some South American economies rarely considered by previous authors. Despite the fact that researchers have long been intrigued by the impact of shocks and convergence in South America, regional studies have particularly focused on specific subsets of UNASUR economies, notably MERCOSUR (i.e., Allegret and Sand, 2009a;Busse, Hefeker and Koopmann, 2006;Camarero, Flores and Tamarit, 2006;De Andrade, Falcão-Silva and Trautwein, 2005;Gimet, 2007a,b). Second, this study incorporates three external disturbances in contrast to those works that have mainly concentrated on the effects of exogenous monetary and commercial shocks (Ahmed, 2003;Canova, 2005;Mackowiak, 2007), restricting the study of external financial disturbances to only a few economies (Allegret and Sand, 2009b).…”