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He added: "The worry is that talk of austerity, talk of public spending cuts, has actually scared the (UK) consumer and all the data are consistent with that from the moment the new coalition government came in consumer confidence fell.
"And if the world economy slows then these spending cuts are really going to impact growth. And the markets actually care more about growth than they do about deficits – so if the UK economy starts to slow and you start to cut that's very bad."
The better-than-expected UK growth reported today was thanks mainly to the construction sector, where output surged 8.5 per cent during the three months – having previously reported a 1.6 per cent fall.