“…Pivot firms are generally firms from a particular industry which are very specialised. For example in the aeronautical field (Kechidi, 2013;Talbot, 2013), the construction of an aircraft is carried out under the responsibility of an architect-integrator of aeronautical systems (Airbus or Boeing), by a small number of pivot firms which are very specialised in a particular block of knowledge (Thales, Goodrich, Honeywell Liehberr, Rockwell, Vought, Alenia, etc.) and a whole network of small and medium-sized companies which are highly diversified and geographically close together.…”