The U.S. dollar will likely stay firm against the yen this week on growing optimism about the U.S. economy and hopes for developments in Afghanistan that are favorable to the United States.
Dealers predict the dollar will trade between the middle of 120 yen and the middle of 123 yen. Many players will be waiting for strong clues and tend to take early profits, they said.
After touching the week's low of 120.33 yen last Monday, the dollar gained ground, temporarily hitting 122.60 yen on Friday in Tokyo trading.
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