UPDATED: Is there a common understanding of the OBR statement in 2021 that Brexit would cause a ‘long-run’ 4% loss of GDP?
Revised calculations over 15 years from 2016
Published on 2 December 2025 and updated on 7 December 2025
It now turns out that the OBR’s ‘long-run’ was 15 years, rather than 20, and that their time series began in 2016, and not in 2021 when they made the statement.
The statement thus included the presumption that GDP growth […]