FOREX-Dollar rises vs yen, falls vs euro before Fed

The dollar edged up against the yen on Wednesday as an improved appetite for risk prompted investors to dump the safe-haven Japanese currency, while the dollar dipped versus the euro as players awaited the outcome of a Federal Reserve meeting.The Fed concludes a two-day policy meeting later in the day and could unveil new steps aimed at easing the credit crunch.With the benchmark interest rate already near zero, the market is looking for any new policy measures, such as purchasing long-dated Treasuries."If the Fed makes comments on purchasing Treasuries, it would soothe concerns that overseas investors may start picking up fewer U.S. bonds," said Hideki Hayashi, chief economist at Shinko Securities.