The dollar has continued to rise against the yen over the past three weeks amid the release of several weak Japanese economic gauges, with some market traders saying the trend may further dog the market this week.
The traders said they expect the dollar to move between 121.50 yen and 126.50 yen this week.
Their projections compare with this week's range of between 122.77 yen and 124.74 yen.
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