“…In particular, this special issue addresses and connects a number of topics that have been long debated in the pages of EPC, such as: the importance of institutional entrepreneurship and leadership in regional policy (Forbes, 2012;Sotarauta and Mustikkama¨ki, 2015;Sotarauta and Pulkkinen, 2011); the role of politics, policy networks, ideas and interests in shaping particular policy agendas (Bulkeley, 2000;Kern, 2011;Smith, 2000;Tomaney and Marques, 2013); the cross-border (Perkmann, 2007) and multi-level dimensions of innovation policy (Uyarra and Flanagan, 2010), not least in relation to sustainability issues (Bulkeley, 2000); and the importance of the institutional environment and path dependencies in the implementation of regional policies (Sternberg et al, 2010). Finally, it addresses the key issue of policy learning and its implications for understanding change (Hassink and Lagendijk, 2001;Sotarauta, 2012).…”