https://www.economiesuisse.ch/de/artikel/schuldentricks-und-standortsorgen-deutschland-im-kreuzfeuer
https://images.transparencycdn.org/images/2022_Internal-Whistleblowing-Systems_English.pdf
https://www.socialeurope.eu/corporate-taxation-financing-state-and-welfare
https://www.fraserinstitute.org/sites/default/files/human-freedom-index-2021.pdf