https://www.mckinsey.com/mgi/our-research/the-complication-of-concentration-in-global-trade
https://www.institute.global/insights/geopolitics-and-security/windsor-framework-what-has-been-agreed-and-what-it-means-northern-ireland-protocol
https://wiiw.ac.at/investors-are-increasingly-shying-away-from-eastern-europe-n-734.html
https://www.instituteforgovernment.org.uk/sites/default/files/publications/5704%20IFG%20-%20Frictionless%20Trade%20Web.pdf