The global competition and related international academic mobility in science and research is rising. Within this context, Europe faces quantitative skills shortages, including an estimate of between 800,000 and one million researchers. Within Europe skills imbalances and mismatches increase, with a growing divergence between countries and regions, in particular between the North and South, in terms of their ability to invest and attract human and financial capital for R&D. As a result intra-European mobility is not only on the rise, but may easily turn from an intended brain...