The vast majority of regions in West Germany, and the EU, have become more similar in terms of per-capita income and productivity between 1980 and 2000. But a number of rich areas - generally large agglomerations - have succeeded in departing from this trend of convergence. They are continuing...

Geppert K., Gornig M. and Werwatz A. (2008) Economic growth of agglomerations and geographic concentration of industries: evidence for West Germany, Regional Studies. During the two decades between 1980 and 2000, there was no clear overall trend of economic convergence or divergence among West...