“…Given the heightened importance of identities in explaining political and institutional outcomes, studies seek to explain why some citizens identify with Europe more than others. While a range of both institutional- and individual-level determinants may affect identity formation (Bruter, 2005; Ciaglia et al, 2020; Citrin and Sides, 2004; Clark and Rohrschneider, 2021; Fligstein et al, 2012), studies also point to the potential importance of transnational experience, as well as cross-border mobility and contacts for European identity formation (Kuhn, 2012; Mazzoni et al, 2018; Prati et al, 2019; Van Mol, 2018). Trans-boundary regions have been described as ‘laboratories of European integration’ (Hooper and Kramsch, 2004: 3), and a European identity could therefore be expected to arise first and foremost among people that interact across national boundaries (Fligstein et al, 2008: 16).…”