https://www.iwh-halle.de/fileadmin/user_upload/publications/gd/2022f/GD_F22_Langfassung_online.pdf
https://www.propublica.org/article/how-private-nonprofits-ultrawealthy-tax-deductions-museums-foundation-art
https://wiiw.ac.at/rrf-2-0-ein-permanenter-eu-investitionsfonds-im-kontext-von-energiekrise-klimawandel-und-eu-fiskalregeln-dlp-6413.pdf
http://www.cesifo-group.de/ifoHome/facts/DICE/Banking-and-Financial-Markets/Financial-Markets/Financial-Market-Regulation/DR-2017-1-oez-wech-macroprud-pol/fileBinary/DR-2017-1-oez-wech-macroprud-pol.pdf