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In this paper we challenge the ability of the conventional methods initiated by Barro and Sala-i-Martin in the early 1990s to detect actual convergence or divergence trends across countries or regions and suggest an alternative dynamic framework of analysis, which allows for a better understanding of the forces in operation. With the use of a SURE model and time-series data for eight European Union (EU) member states, we test directly for the validity of two competing hypotheses: the neoclassical (NC) convergence hypothesis originating in the work of Solow and the cumulative causation hypothesis stemming from Myrdal's theories. We also account for changes in the external environment, such as the role of European integration on the level of regional disparities. Our findings indicate that both short-term divergence and long-term convergence processes coexist. Regional disparities are reported to follow a …