The respected National Institute of Economic and Social Research said this week the new figure, which will be unveiled in two weeks' time, could be as low as 0.5%. Economist Brian Hilliard at Societe Generale said: 'It is dangerous to read too much into one month's data but it does suggest that the trade deficit, rather than peaking, is resuming a widening trend. This is one further piece of information raising doubts about the growth outlook and so will add to the chances that a cut in interest rates will be necessary.'