“…These policy instruments, based on specific indicators, with different weightings attributed to each of them, have been largely analysed through the lens of their methodology (Usher and Medow, 2009;Shin et al, 2011). A number of authors have focused on their development, their diffusion and their political significance (Marginson and 3 van der Wende, 2007;Kehm and Stensaker, 2009;Kauppi and Erkkilä, 2011;Hazelkorn, 2011;Tofallis, 2012). However, their policy impact, which has been reflected in these recent stimulating works, needs to be further investigated.…”