Data sets from OECD countries and especially the US indicate growing inequalities in income and thus stimulate research with respect to this topic. In this paper the basic arguments and results of several studies with an economic and a sociological background are compared and discussed. It...

The rising focus of politicians as well as scientists in the EU on the large urban agglomerations as centres of economic growth is accompanied by political efforts to identify and to demarcate such agglomerations under the label 'metropolitan regions'. This study develops a theoretical framework...