https://www.brookings.edu/articles/the-changing-role-of-the-us-dollar/
https://ecipe.org/wp-content/uploads/2023/07/ECI_23_PolicyBrief_08-2023_LY02.pdf
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/637748/Future_customs_arrangements_-_a_future_partnership_paper.pdf
https://www.bloomberg.com/news/articles/2019-09-11/world-s-oldest-customs-union-and-u-k-reach-a-post-brexit-deal