https://www.socialeurope.eu/europes-education-gamble-can-the-eu-compete-in-a-changing-world
https://www.socialeurope.eu/2017/06/mercron-franco-german-tandem-back-berlins-terms/
https://blogs.lse.ac.uk/brexit/2019/11/04/would-a-more-educated-population-have-rejected-brexit/
https://www.ifs.org.uk/uploads/publications/bns/BN211.pdf