“…Table 1 provides an overview of the subsectors most commonly defined as being part of the marine sector. In theory a maritime cluster has the potential to represent any number or combination of maritime sub--sectors provided in Table 1. However, to date, the majority of maritime clusters have been based on exploiting agglomeration economies between firms belonging to the same maritime subsector, with a particular focus on the transportation sector (de Langan, 2002;Benito et al, 2003;Shinohara, 2010;Brett & Roe, 2010;Chang, 2011;Othman et al, 2011;Morrissey and O'Donoghue, 2013a).…”