The yen rose for a fourth day against the dollar on speculation and the traders will reverse record bets on a further decline before a Bank of Japan report that will show an improved outlook for the world's second-largest economy. The yen last week reached a one-month high after a report showed the U.S. economy grew at the slowest pace in more than three years.

Japan's currency also had the biggest gain in six weeks versus the Euro on Oct. 28th said the central bank.

The yen climbed 117.13 per Dollar from 117.60 in New York on Oct 27th and 149.32 per Euro from 149.84 in London. It is expected to reach 117 against Dollar and 149 against Euro.

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