https://www.mckinsey.com/mgi/our-research/global-trade-explorer?sector=0ag
https://www.afronomicslaw.org/2020/11/10/global-value-chains-gvcs-trade-and-inequalities/#
http://ecipe.org/publications/the-uks-first-international-trade-negotiation/?chapter=all
https://trade.ec.europa.eu/doclib/docs/2017/december/tradoc_156474.pdf