The dollar edged higher against its major peers on Wednesday, reaching a more than one-week top versus the yen, buoyed by higher Treasury yields as traders puzzled over the outlook for policy at the world's biggest central banks.
The 10-year Treasury yield , which tends to be highly correlated to the dollar-yen pair, was at 3.843% in Tokyo, not far from the 1 1/2-month high of 3.862% reached overnight.
"The dollar is in a very interesting situation," said Bart Wakabayashi, a branch manager at State Street in Tokyo.
Sterling eased 0.06% to $1.2024, as it continued to hover just above its low for the month of $1.1993, reached on Dec. 22.
The Australian dollar was flat at $0.6733, while the New Zealand dollar added 0.09% to $0.6279.