http://www.ecb.europa.eu/pub/pdf/other/ebart201703_01.en.pdf
https://cepr.org/system/files/publication-files/173807-geneva_25_climate_and_debt.pdf
http://norden.diva-portal.org/smash/get/diva2:1095959/FULLTEXT02.pdf
https://www.brookings.edu/articles/what-are-tariffs-and-why-are-they-rising/