https://ec.europa.eu/info/sites/info/files/economy-finance/ip127_en.pdf
https://www.bbc.com/news/world-europe-54964858
https://ukandeu.ac.uk/the-impact-of-brexit-on-bond-prices/?mc_cid=8002195303&mc_eid=815b1928ec
https://www.strategie.gouv.fr/sites/strategie.gouv.fr/files/atoms/files/2020-05-13_etat_des_lieux_du_financement_de_la_protection_sociale.pdf