https://www.esri.ie/system/files/publications/SUSTAT123_2.pdf
https://blogs.imf.org/2020/04/15/fiscal-policies-to-contain-the-damage-from-covid-19/?utm_medium=email&utm_source=govdelivery
https://www.socialeurope.eu/reform-of-eu-fiscal-rules-more-ambition-needed
https://www.cesifo-group.de/DocDL/EEAG-2018.pdf