
https://www.imf.org/en/Publications/fandd/issues/2022/09/Bullet-train-Adrian-Mancini-Griffoli

https://www.ispionline.it/it/pubblicazione/la-crisi-tedesca-e-il-futuro-dellindustria-europea-189853

https://theconversation.com/for-europe-to-emulate-silicon-valleys-tech-success-it-should-change-its-startup-funding-model-228427