https://www.cbo.gov/system/files/115th-congress-2017-2018/reports/53651-outlook.pdf
https://openknowledge.worldbank.org/bitstream/handle/10986/36647/What-Has-Been-the-Impact-of-COVID-19-on-Debt-Turning-a-Wave-into-a-Tsunami.pdf?sequence=1&isAllowed=y
https://www.brookings.edu/articles/the-difference-in-how-the-wealthy-make-money-and-pay-taxes/
https://www.socialeurope.eu/2017/06/the-case-for-an-investment-state/