https://socialeurope.eu/the-left-must-embrace-fiscal-restructuring
https://openknowledge.worldbank.org/bitstream/handle/10986/38045/9781464819025.pdf?sequence=5&isAllowed=y
https://ukandeu.ac.uk/wp-content/uploads/2020/10/UK-internal-Market-Bill-devolution-and-the-union.pdf