“…While industrial districts come from below, that is, from the local socio–economic context in which they are inserted and the willingness of companies to establish a network (Becattini, ; Baccarani and Golinelli, ), the formation of tech‐clusters is both a result of public investment or the location of a large high‐tech enterprise that acts as a bridging institution (Boari and Lipparini, ; Lofsten and Lindelof, ; Bresnahan et al ., ). In many cases, they bring together firms without a strict spatial correlation, with one or more big firms acting as hub of the innovation processes (Bertamino et al ., ). If industrial districts do not have special links with research centres, technological districts form around scientific centres of excellence which help to transfer research results to the industrial system.…”