Joan R. Rosés and Nikolaus Wolf: Regional Economic Development In Europe, 1900-2010: A Description Of The Patterns: "Regional employment structures and regional GDP and GDP per capita in 1990 international dollars, stretching over more than 100 years.... Variation in the density of population and economic activity, the spread of industry and services and the declining role of agriculture... changes in the levels of GDP and GDP per capita... patterns of convergence and divergence over time and their explanations... a secular decrease in spatial coherence... a U-shaped development in geographic concentration and regional income inequality, similar to the finding of a U-shaped pattern of personal income inequality...
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