https://cepr.org/system/files/publication-files/173807-geneva_25_climate_and_debt.pdf
https://www.brookings.edu/blog/up-front/2018/07/12/as-trump-twists-natos-arm-lets-run-the-math-on-defense-spending/?utm_campaign=Brookings%20Brief&utm_source=hs_email&utm_medium=email&utm_content=64421876
http://www.resolutionfoundation.org/app/uploads/2017/01/Audit-2017.pdf
https://www.resolutionfoundation.org/app/uploads/2019/11/The-shape-of-things-to-come.pdf