https://www.cesifo-group.de/DocDL/ifoDD_18-01_29-31_Achten.pdf
https://www.wto.org/english/res_e/reser_e/ullbergpresentation_e.pdf
https://journals.sagepub.com/doi/pdf/10.1177/00187267231218430
https://www.imf.org/en/News/Articles/2024/03/27/germanys-real-challenges-are-aging-underinvestment-and-too-much-red-tape