Britain is facing the deepest recession of any big industrialised economy, the International Monetary Fund signalled on Wednesday as it said that the UK economy would shrink 2.8 per cent this year.
This is correct, but it is largely because the UK had a very bad end to 2008. Annual GDP growth is calculated as the sum of GDP in 2008/sum of GDP in 2007. In 2007 UK GDP was £1,267bn, in 2008 it was £1,276bn, a growth rate of 0.7%. 2009 GDP is therefore forecast to be 2.8% lower than £1,276bn, i.e. £1,240bn.
But more than half of this deterioration has already happened. Q4 08 GDP was £314.3bn, which if repeated for each of 2009's four quarters, would mean 2009 GDP of £1,257bn. That would mean 2009 GDP would be 1.5% lower than 2008 GDP, even though GDP had not fallen in any quarter of 2009.
In fact the IMF expects Q4 09 GDP to be 1.5% lower than Q4 08 GDP, so there is more shrinkage to go. But this is only the same as Spain, and better than France (-1.8% GDP*).
So I'd say we were unquestionably the 2nd worst economy in the G7, but only probably the first.
* France is a strange one as the Fund expects a rebound in 2010 of 2.2% Q4/Q4, the best by someway in the G7.

