
https://www.boeckler.de/pdf/p_imk_report_139_2018.pdf

https://www.huffingtonpost.co.uk/entry/test-and-trace-spending-ps37bn-budget-small-print_uk_60412920c5b601179ec35d4a

https://www.brookings.edu/articles/the-hutchins-center-explains-the-neutral-rate-of-interest/