Hubert Heinelt is professor of public administration, public policy, and urban studies at the Institute of Political Science at Darmstadt University of Technology, where Karsten Zimmermann works as a senior researcher. Both are members of the LOEWE Centre of Research Excellence, Urban Research at Darmstadt University.. Eran Razin is director of the Institute of Urban and Regional studies, head of Floersheimer studies, and a member of the faculty of geography, all at the Hebrew University of Jersualem.