
https://www.institut-de-la-protection-sociale.fr/download/contribution-de-linstitut-de-la-protection-sociale-a-la-2eme-phase-de-concertation/?wpdmdl=5221

https://www.realclearmarkets.com/articles/2023/07/21/the_quickest_path_to_becoming_a_billionaire_966656.html

http://www.ips-journal.eu/regions/europe/article/show/lessons-for-the-left-2270/