
https://www.kearney.com/documents/20152/5708085/2020+Reshoring+Index.pdf/ba38cd1e-c2a8-08ed-5095-2e3e8c93e142?t=1586876044101

https://ec.europa.eu/commission/sites/beta-political/files/customs_controls_0.pdf

https://www.mckinsey.com/mgi/our-research/the-complication-of-concentration-in-global-trade