
https://www.gatesnotes.com/2018-Annual-Letter?WT.mc_id=02_13_2018_02_AnnualLetter2018_DO-COM_&WT.tsrc=DOCOM

https://www.censis.it/sites/default/files/downloads/La%20societaitaliana_2021.pdf

https://www.project-syndicate.org/commentary/coronavirus-greater-great-depression-by-nouriel-roubini-2020-03