https://www.bancaditalia.it/pubblicazioni/quaderni-storia/2020-0046/QSE-46.pdf
https://www.ecb.europa.eu/press/pr/date/2022/html/ecb.pr220721~973e6e7273.en.html
http://cep.lse.ac.uk/pubs/download/brexit11.pdf
https://www.brookings.edu/articles/house-republicans-want-to-cut-the-irs-budget-again/