http://www.diw.de/documents/publikationen/73/diw_01.c.562050.de/17-29.pdf
https://www.elysee.fr/admin/upload/default/0001/06/b6d6d489f677358036fcc00c43d51f7a4213b233.pdf
https://www.ifri.org/sites/default/files/atoms/files/pe-4-2022_mirel.pdf
https://www.ucl.ac.uk/european-institute/analysis/2016-17/poulsen-investment-policy