“…Convergence clubs have also emerged by adopting the Phillips and Sul (2007, 2009) methodology (Table 2), both at the country (Apergis, Panopoulou, & Tsoumas, 2010; Borsi & Metiu, 2015; Fritsche & Kuzin, 2011; Monfort, Cuestas, & Ordonez, 2013) and at the regional and provincial levels (Bartkowska & Riedl, 2012; von Lyncker & Thoennessen, 2017; Montañés et al, 2018). However, none of these studies analyses simultaneously the national and regional club convergence on the same panel of countries.…”