Interest rate futures shows investors have scaled back their forecasts for how high the U.K. central bank will lift rates on concern borrowing costs at a six-year high of 5.75 percent will begin to slow economic expansion. The implied yield on the December interest-rate futures contract has fallen 10 basis points to 6.15 percent in the past two weeks. The contract settles to the three-month London inter-bank offered rate for the pound, which has averaged about 15 basis points more than the bank's key rate in the past decade.