U.S. Treasuries declined, pushing 10-year yields toward the most in more than two weeks, as the country prepared to sell $21 billion of securities maturing in 2022. Thirty-year bonds fell for the fourth time in the past five trading days before the Federal Reserve releases its Beige Book business survey today. Fed Vice Chairman Janet Yellen said asset purchases by the central bank that boost U.S. economic growth will benefit the world. Benchmark 10-year note yields increased one basis point, or 0.01 percentage point, to 1.73 percent at 9:40 a.m. London time, based on Bloomberg Bond Trader data. The yield rose to 1.74 percent on Oct. 5, the most since Sept. 24. The yield has jumped from a record low 1.38 percent on July 25. The 1.625 percent security due in August 2022 rose 3/32 or 94 cents per $1,000 face amount, to 99 3/32 today. Thirty-year yields advanced two basis points to 2.94 percent. Investors at the last auction of 2022 debt on Sept. 12 bid for 2.85 times the amount of debt available, versus the average of 3.11 for the past 10 auctions of the maturity. U.S. government bonds have lost investors 0.4 percent this month, according to Bank of America Merrill Lynch indexes. Yields are rising amid signs of improvement in the U.S. economy, as President Barack Obama and challenger Mitt Romney prepare to face off in a Nov. 6 general election. To contact the reporter on this story: Lukanyo Mnyanda in Edinburgh at lmnyanda@bloomberg.net To contact the editor responsible for this story: Paul Dobson at pdobson2@bloomberg.net

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