
https://www.progressivepolicy.org/blogs/trade-fact-of-the-week-americas-non-mfn-tariffs-on-natural-resources-are-usually-low/

https://publications.parliament.uk/pa/ld5801/ldselect/ldeucom/248/248.pdf

https://ec.europa.eu/commission/sites/beta-political/files/reflection-paper-globalisation_en.pdf