https://www.esri.ie/system/files/publications/RS181_0.pdf
https://www.publications.parliament.uk/pa/ld201314/ldselect/ldeucom/164/164.pdf
http://blog.arbeit-wirtschaft.at/mindestlohn-zufriedenere-beschaeftigte/
https://www.nuffieldtrust.org.uk/files/2022-09/1662995727-nuffield-trust-new-horizons-web.pdf