https://www.gov.uk/government/news/david-davis-closing-remarks-at-the-end-of-the-fourth-round-of-eu-exit-negotiations-in-brussels
http://carnegieeurope.eu/2017/06/15/bringing-brexit-back-to-reality-pub-71262
https://www.niesr.ac.uk/wp-content/uploads/2023/11/JC760-NIESR-Outlook-Autumn-2023-Global-Topical-Feature-v2.pdf