https://www.taxobservatory.eu//www-site/uploads/2023/10/global_tax_evasion_report_24.pdf
https://www.nber.org/system/files/working_papers/w28598/w28598.pdf
https://www.etui.org/sites/default/files/2020-08/Mitigating%20the%20COVID-19%20effect_2020_web.pdf
https://verfassungsblog.de/the-good-the-bad-and-the-ugly-2/