https://www.ecb.europa.eu/press/key/date/2021/html/ecb.sp210226~ff6ad267d4.en.html
https://scholar.harvard.edu/files/rogoff/files/ilzetki_reinhart_rogoff_qje_2019_2.pdf
https://economy-finance.ec.europa.eu/document/download/f5827354-8501-49cb-bf2d-13f2f7a9444f_en?filename=dp199_en.pdf
https://www.esri.ie/system/files/publications/QEC2023SPR_0.pdf