http://www.bankofengland.co.uk/publications/Documents/speeches/2017/speech1001.pdf
https://openknowledge.worldbank.org/bitstream/handle/10986/38045/9781464819025.pdf?sequence=5&isAllowed=y
https://www.whitehouse.gov/wp-content/uploads/2021/05/budget_fy22.pdf
https://www.bruegel.org/system/files/2024-05/PB%2008%202024_1.pdf