Britain's economy grew by 0.8% in the three months to November, slightly better than expected, according to the National Institute of Economic and Social Research.
The economics think tank said the figure represents a slight increase on the 0.7% clip, recorded for the three months up to October.
NIESR quarterly forecasts published on 5 November projected the growth rate in the UK economy to be 1.4% for the year in 2013, and 2.4% for 2014.
Meanwhile, data on British exports have sent mixed signals about the health of the economy.
The trade gap - the difference in value over a period of time of a country's imports and exports of merchandise - was at its lowest level since March 2013.
But figures from the Office for National Statistics (ONS) on Britain's import/export progress were equivocal.
The ONS found exports of goods had in fact decreased by 1.3% between September and October this year to £24.7bn; imports for the same period fell by 1.9% to £34.4bn.