1. Centre for Housing Research, School of Geography and Geosciences, University of St Andrews, Irvine Building, North Street, St Andrews, Fife KY16 9AL, Scotland
2. OTB Research Institute for the Built Environment, Delft University of Technology, PO Box 5030, 2600 GA Delft, The Netherlands
3. The Netherlands Institute for Social Research, PO Box 16164, 2500 BD The Hague, The Netherlands