https://ukandeu.ac.uk/the-debt-brake-and-germanys-international-competitiveness/
http://www.cesifo-group.de/portal/page/portal/DocBase_Service/studien/Studie-2017-Felbermayr-etal-Brexit-79843.pdf
https://www.eca.europa.eu/Lists/News/NEWS1801_16/INSR_SSM2_EN.pdf
https://www.bruegel.org/sites/default/files/2023-09/PB%2017%202023.pdf