The enlargement of the European Union in May 2004 by ten new member states bear increasing challenges in creating social cohesion among its citizens and regions. Social cohesion is understood here in a broad sense as a coalescence of European societies in such a way that living conditions and...

The economic literature to date is underestimating the importance of regional price level differences. Only in the form of "rent indices" are these differences considered in relation to overall quality of life. As experimental estimates by the Federal Institute for Research on Building, Urban...