Patterns of innovation in the EU-25 regions: a typology and policy recommendations This paper depicts a typology of regions, capturing the diversity of regional innovation systems across the EU-25. Following the Regional Innovation Systems (RIS) literature, our research selects 21 variables related to the ability of a region to generate and absorb knowledge, and its capacity to transform R&D into innovation and economic growth. Based on the results of principal components and cluster analyses, we identify seven types of regional innovation system where the 186 regions group together according to their sectoral specialization, technological and economic capacity, and performance. By allowing us to identify similar and more advanced regions, the paper facilitates comparisons and benchmarking between homogeneous regions, thus enabling more accurate policy learning. For each group a number of policy recommendations are suggested, contingent to their local-specific characteristics. In short the contribution of this paper is twofold. In the first place it provides the first RIS typology for the EU-25 regions completed using a large number of variables. Secondly, the conclusions obtained from the analysis may be used to lead policymakers' actions in the field of regional innovation policy in the EU. Patrones regionales de innovación en la UE-25: tipología y recomendaciones de políticas