The goal of this paper is to analyse the innovation activity convergence process across European regions from 2002 to 2012. A novel methodology that allows either detection of overall convergence or endogenous identification of groups of regions was applied. The results support the club convergence hypothesis for explaining the convergence process of Europe's regions during the period analysed and seven innovation convergence clubs were identified.In addition, the research results indicate that initial regional R&D expenditure is the most relevant factor driving the formation of the convergence clubs after controlling for the effects of regional structural characteristics.

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This paper examines the patterns of convergence in international scientific collaboration across a set of developed and developing countries from 1997 through 2012. The empirical analysis was carried out in a novel way applying the methodology developed by Phil-

This paper analyses the patterns of convergence across the European Union countries in terms of both economic growth and technological conditions during the period 1995-2013. We apply the methodology of Phillips-Sul (2007) to study convergence in real income per capita and countries' technological capabilities. We consider separately eight technological indicators as proxies for a country's innovative ability and absorptive capacity. The results support the club convergence hypothesis for income and some technologyrelated indicators and offer an approximation to the role that technological capabilities could play in the income convergence process.

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