HC Deb 10 December 1976 vol 922 c408W
Mr. Gould

asked the Chancellor of the Exchequer what proportions of the l½ per cent. increase in export volume, and ½ per cent. to 1 per cent. increase in import volume, which he has estimated would follow a 1 per cent. devaluation would be achieved in six months, one year and two years, respectively.

Mr. Denzil Davies

While it is clear that there are quite long lags, probably extending over several years, before the full effects of a devaluation are to be observed in trade volumes, the scale and, even more, the timing of the effects are subject to wide margins of error.