C67, I2, D1,

This article aims to examine the di¨erences in the behaviour of productivity across the European regions. First, we give an overview of regional convergence of productivity in the European Union. Signi®cant regional di¨erences emerge from the detailed analysis of the evolution of productivity that follows. We note that those di¨erences can even be observed in relatively homogeneous regions (peripheral, central, old industrialised, etc.).A new methodological approach is introduced with the aim of exploring in greater depth this diversity, especially in the evolution of labour productivity. A total of 97 regions from the European Union have been selected in order to verify some speci®c di¨erences in productivity, employment and GVA growth rates. Despite the global trend towards convergence in productivity, this article reveals that signi®cant regional di¨erences persist. Finally, a regional typology is presented.

The urban sprawl phenomenon has attracted the attention of social researchers since the mid-20th century. It seemed that all relevant aspects had been extensively studied and that it would be difficult to produce new studies with significant contributions. However, in the last decade, we have witnessed a revival of the literature on urban sprawl for three main reasons: (i) the existence of new methodologies to measure the phenomenon based on digital cartography and geo-referenced information, (ii) new hypotheses about the relevance of the formation of metropolitan areas not institutionally integrated into urban sprawl in many places and, mainly, (iii) the role of urban density in the environmental sustainability of cities. The recent literature on this third aspect has grown the most and around which it seems that new and interesting lines of future research will develop. The objective of this work is to present a synthetic review of the most recent literature on urban sprawl as of the end of the second decade of the XXI century. This review can serve to recapitulate the growing consensus that is being formed on the lower environmental sustainability of low-density cities and diffuse limits.

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issn impreso 0250-7161 | issn digital resumen | Utilizando datos relacionales, de movilidad obligada, en combinación con indicadores de concentración y densidad de población y empleo, en este artículo se examina la reestructuración territorial en la metrópoli de Buenos Aires desde un enfoque funcional. Se muestra que el crecimiento metropolitano sigue pautas tanto de dispersión como de policentrismo, que se manifiestan en distintas partes de la metrópoli. Los subcentros de empleo presentan capacidad para estructurar el funcionamiento metropolitano y ejercer distinto grado de influencia en los respectivos corredores. Con todo, la ciudad central ejerce un papel estructurante principalmente respecto a los flujos laborales en ocupaciones cualificadas y de mayor formación, que provienen sobre todo de los corredores Norte y Noroeste. La complejidad de estos procesos debe ser considerada en la formulación de políticas públicas tendientes a atenuar los impactos no deseados de la dispersión, conforme se consolidan los subcentros de empleo como articuladores de la dinámica metropolitana.palabras clave | áreas metropolitanas, reestructuración territorial, movilidad. abstract | This article examines the territorial restructuring of the metropolis of Buenos Aires from a functional approach, using commuting relational data along with indicators of concentration and density of population and employment. It is observed that metropolitan growth follows patterns of dispersion and polycentricism, which appear in various areas