https://www.federalreserve.gov/newsevents/speech/files/powell20200827a.pdf
https://www.bancaditalia.it/pubblicazioni/quaderni-storia/2020-0046/QSE-46.pdf
Procurement Bill [HL] – Hansard – UK Parliament
https://www.resolutionfoundation.org/app/uploads/2019/11/The-shape-of-things-to-come.pdf