The dollar fell back against other major currencies on Thursday, hit by speculation U.S. Federal Reserve chief Janet Yellen will express concern over the pace of its surge to a 13 1/2-year high in the past week and an accompanying rise in bond yields, Reuters reported. It was flat on the day at 109.03 yen and 0.2 percent lower against the euro at $1.0709. The yen took a knock overnight when the Bank of Japan conducted its first special operation to curb rising yields on Japanese government bonds (JGBs). The offer was priced to attract no bids, but knocked government bond yields further back into negative territory, pushing the dollar briefly as high as 109.30 yen.
