https://www.taxobservatory.eu//www-site/uploads/2023/10/global_tax_evasion_report_24.pdf
https://verfassungsblog.de/the-good-the-bad-and-the-ugly-2/
https://www.sciencedirect.com/science/article/pii/S0022199617301411
http://www.oecd.org/eco/surveys/Boosting-productivity-and-wellbeing-OECD-economic-survey-Ireland-2018.pdf