
https://www.diw.de/documents/publikationen/73/diw_01.c.578096.de/18-7-3.pdf

http://www.ips-journal.eu/topics/european-union/article/show/no-more-penny-pinching-2076/

https://www.brookings.edu/wp-content/uploads/2023/03/20230504_TPC_Gale_FiscalOutlookUPDATE.pdf