IFS warns: 'Even more austerity than we'd expected'
6 December 2013 Last updated at 15:55 GMT
Higher UK growth forecasts do not mean the country's structural position has improved, warns the influential Institute for Fiscal Studies (IFS).
The increased forecast is just a result of growth coming a bit sooner than had been expected, said Paul Johnson from the IFS.
"There's even more austerity than we'd expected because the chancellor has decided he wants to continue for an additional year in order to get the books into surplus - he doesn't need to do that for his own fiscal rules," he told the BBC's Hugh Pym.