https://www.brookings.edu/articles/europe-needs-competition-not-national-champions/
https://www.bancaditalia.it/compiti/riserve-portafoglio-rischi/cis/Presentazione_CIS_5.07.2021.pdf?language_id=1
https://www.oecd.org/fr/fiscalite/delits/en-finir-avec-les-montages-financiers-abusifs-reprimer-les-intermediaires-qui-favorisent-les-delits-fiscaux-et-la-criminalite-en-col-blanc.pdf
https://www.berkshirehathaway.com/letters/2019ltr.pdf