Gert-Jan Hospers teaches economic geography at the University of Twente and has a special chair in place marketing at Radboud University, the Netherlands. He has published a lot on the urban and regional development of North West Europe. Nol Reverda is sociologist and full professor at Zuyd University of Applied Sciences, the Netherlands, where he runs a research centre on social integration. Besides, he is scientific director of the Netherlands Research Centre of Demographic Change, Neimed.