“…To date, existing research has provided mixed results. Some studies find positive effects on university enrollment for Italy (Cappellari and Lucifora, 2009;Di Pietro, 2012;Bondonio and Berton, 2018) as well as for Portugal (Cardoso et al, 2008). For Germany, in contrast, no effects on total enrollment (Horstschräer and Sprietsma, 2015) or on the participation of students from low socio-economic backgrounds (Neugebauer, 2015) have been reported.…”