https://www.cesifo-group.de/DocDL/ifoDD_18-01_03-09_Ochsner.pdf
https://futuros.gob.es/sites/default/files/2023-09/RESILIENTEU2030.pdf
https://www.ft.com/content/ed91e91a-87f2-11e7-8bb1-5ba57d47eff7
https://www.theatlantic.com/international/archive/2019/10/brexit-journalism-failure/600580/