https://www.elysee.fr/emmanuel-macron/2020/05/26/plus-verte-et-plus-competitive-notre-plan-de-soutien-a-la-filiere-automobile
https://knowledge.wharton.upenn.edu/article/how-the-u-s-could-stabilize-debt-and-fuel-economic-growth/
https://www.ecb.europa.eu/pub/pdf/ecbu/eb201703.en.pdf?ea7747ab0ef3b038300a8d51a3a95313