6.
Wallonia tries to promote technological innovations focusing on selected clusters of economic activities (clustering et grappage). It is an open question whether these clusters classify as innovative environments [3]. An important concentration of innovative businesses, however, is found in the Louvain-la-Neuve/Wavre area. Although officially belonging to Wallonia, this area is rather part of the Brussels agglomeration. Transterritorial networks are a typical ingredient of innovative environments. Flanders is involved via Leuven in a cross-border network with Eindhoven and Aachen. Note that Flanders has known a 'Third Industrial Revolution', centered on Leuven. What about Wallonia? Do the clusters have a transterritorial dimension, extending for example to Flanders? What about Flemish companies already present in Wallonia or considering locating there? The euroregional position of Liege vis-à-vis Maastricht, Aachen and Heerlen does not seem to have resulted in a real cooperation.