https://files.taxfoundation.org/20211014170634/International-Tax-Competitiveness-Index-2021.pdf
https://www.linkiesta.it/2020/05/cosa-ha-davvero-deciso-la-corte-tedesca-bce-quantitative-easing/
https://www.perfandersson.com/uploads/1/2/7/5/127505228/andersson_2022_cp_accepted_version.pdf