The dollar hit a five-year high versus the yen on Friday as markets focused on the divergence between U.S. and Japanese monetary policy, driving U.S. Treasury yields higher after Wednesday's Fed decision to start cutting bond-buying.
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The greenback also gained against the euro, which was held back by S&P's decision to cut the European Union's supranational long-term rating to AA-plus from AAA, citing rising tensions on budget negotiations.
The dollar, which looks set to be backed by relatively higher interest rates next year if the Federal Reserve gradually calls a halt to bond-buying, rose to 104.60 yen on the EBS trading platform, its highest since October 2008, and was recently at 104.45 yen, up 0.2 percent.
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