Relying on the international literature on CV-based indicators, we select a sample of CVs from researchers applying to the Spanish Ramón y Cajal programme to assess mobility patterns and look for evidence of links between mobility and research performance. Evidence is found that mobility patterns vary across disciplines and that most internationally mobile researchers seem to have better access to international funding sources and networks, which does not, however, imply that they are the most

quantitatively productive as far as publications and patents are concerned. The results thus support the idea that the qualitative dimension of mobility impact is an important one to consider.