https://ukandeu.ac.uk/the-swiss-approach-to-trade-with-the-eu/?mc_cid=f98b87bf43&mc_eid=815b1928ec
https://ecipe.org/wp-content/uploads/2021/09/ECI_21_PolicyBrief_13_2021_LY02.pdf
https://www.instituteforgovernment.org.uk/sites/default/files/publications/5704%20IFG%20-%20Frictionless%20Trade%20Web.pdf
https://www.brookings.edu/blog/brookings-now/2017/08/17/nafta-renegotiation-separating-fact-from-fiction/?utm_campaign=Brookings%20Brief&utm_source=hs_email&utm_medium=email&utm_content=55437725