https://www.ecb.europa.eu/press/key/date/2021/html/ecb.sp210226~ff6ad267d4.en.html
https://www.tandfonline.com/doi/full/10.1080/09692290.2022.2107043
https://neweconomics.org/2023/08/new-eu-fiscal-rules-jeopardise-investment-needed-to-combat-climate-change
https://www.boeckler.de/pdf/p_imk_study_58_2018.pdf