The dollar was slightly lower against the yen but higher versus the euro Friday in early Asian trading ahead of the Bank of Japan's release later in the day of a monthly economic report. The dollar was trading at 107.51 yen at late morning in Tokyo, up 0.39 yen from late Wednesday in Tokyo but below the 107.65 yen it bought in New York later that day. The euro fell to $1.2646 from $1.2677 late Thursday in Tokyo. But it rose against the Japanese currency, from 135.94 yen from 135.64 yen. Japan's central bank was to issue its monthly economic report for May, which is expected to maintain the current easy money policy. In New York Thursday, the dollar advanced as investor speculation over the actions of Asian central banks and a broadening improvement in sentiment for the U.S. currency's short-term prospects. The dollar remained stable against most Asian currencies Friday morning. The greenback strengthened against the Hong Kong dollar, South Korean won and Philippine peso. The dollar was helped by Hong Kong's introduction Wednesday of a top end of the Hong Kong dollar's trading band, and the debut of trading for eight additional currency pairs in China, turned out not to be harbingers of an imminent revaluation of the Chinese yuan. The Bank of Korea's denial of a Financial Times report Wednesday suggesting the central bank will stop intervening in the currency market also supported the dollar. A revaluation of China's currency is expected to pressure the dollar against Asian currencies and the speculation over such a move has caused nervousness in markets recently. The dollar gained some ground last week on a string of better-than-expected U.S. economic reports, but faltered this week amid some mixed economic figures from the United States.