The dollar-yen exchange rate could remain on a roller-coaster ride through much of the year ahead.
The currency market remains locked in a crosscurrent between fears of the dollar's fall below 100 yen and speculation over dollar-selling intervention by the Bank of Japan.
At the outset of the year's first trading session Tuesday in Tokyo, Japanese export-oriented companies unloaded their dollar holdings, making up for lost time during the yearend and New Year holiday season.
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