https://www.imf.org/-/media/Files/Publications/PP/2023/English/PPEA2023001.ashx
https://www.brookings.edu/articles/the-difference-in-how-the-wealthy-make-money-and-pay-taxes/
https://www.bis.org/publ/arpdf/ar2017e_ec.pdf
https://lawliberty.org/forum/why-economists-loathe-tariffs/