Britain the only G7 economy forecast to shrink in 2023

IMF has been right about this exactly 0 times in the last 12 years.

Source?

This is a talking point that is being put about by people (eg Jacob Rees-Mogg) who supported Brexit in an attempt to discredit the bad news. In research, the IMF's forecasting accuracy for GDP for G7 nations is pretty good and has been reasonably accurate over time. For example https://www.imf.org/en/Publications/WP/Issues/2016/12/30/How... , https://www.imf.org/en/Publications/WP/Issues/2021/08/06/An-... and https://www.heritage.org/trade/report/how-reliable-are-imf-e... but you can find other sources.

The IMF forecasting accuracy for the UK has been out quite a lot. https://order-order.com/2023/01/31/all-hail-the-latest-imf-f... "Since 2016 the IMF has consistently underestimated UK GDP growth. Every single year. "

Put 10 economists in a room and you'll get 11 opinions.