https://www.federalreserve.gov/newsevents/speech/files/powell20200827a.pdf
https://thehill.com/opinion/finance/571764-enough-with-the-gdp-its-time-to-measure-genuine-progress?utm_source=newsletter&utm_medium=email&utm_campaign=13%2F09%2F21
https://www.linkiesta.it/2020/05/cosa-ha-davvero-deciso-la-corte-tedesca-bce-quantitative-easing/
http://www.bankofengland.co.uk/publications/Documents/inflationreport/2017/aug.pdf