For those wanting a primer on how to interpret the 0.5 per cent rise in UK GDP in the first quarter this morning, you could read this piece from the FT yesterday. But I will also summarise the maths and its implications here.
The 0.5 per cent figure suggests the economy stagnated at best in the six months between the third quarter of 2010 and first quarter of 2011 and probably contracted a little. The stagnation bit is easy to see, since the level of GDP in Q3 2010, with an index number of 99.6, is the same as that in Q1 2011.
The “at best” bit comes from the fact that some of the activity that would have taken place at the end of last year, but was disrupted by the snow – distributing goods or maintenance of equipment for example – will have taken place in the first quarter, flattering the latest figures. We don’t know how big this effect was, but can put boundaries on it. At best, the economy stagnated. At worst, if all of the 0.5 per cent of activity lost in the fourth quarter was displaced into the first quarter, the underlying level of activity is now 0.5 per cent lower than that in Q3 2010. Read more





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