http://voxeu.org/system/files/epublication/Brexit_Beckons_VoxEU.pdf
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/637748/Future_customs_arrangements_-_a_future_partnership_paper.pdf
https://www.niesr.ac.uk/wp-content/uploads/2023/11/JC760-NIESR-Outlook-Autumn-2023-Global-Topical-Feature-v2.pdf
https://publications.parliament.uk/pa/cm201719/cmselect/cmcumeds/365/36503.htm