But if that is the pessimistic view there is also a more positive message which is, if anything, more credible. It is that the Bank of England does not like the gap between American interest rates and those in this country to widen too much, because when our rates are significantly higher than those in New York it brings too much hot money into this country and pushes up the sterling exchange rate against the dollar. When sterling is over-valued it causes all sorts of unpleasant side effects for exporters and tends to depress the economy generally. So, with the Americans having cut their rates by half a point on Tuesday, we really had no choice but to follow today.