Early, the convergence theory was suggestively expressed in the Solow model. This can be shown in line with the fact that while economic development is advancing (expressed by the income per capita growth), on long run there is a general convergence process among countries. Generally, empirical...

At present, there is not an unique indicator to evaluate the converge process. Varying with the assumptions and methodologies considered, with the indicators used and with the periods analysed, the results of the studies on convergence in the European Union are often ambiguous. Some of them...