Japan's annual wholesale inflation held steady at 3.8% in December on stubbornly high food costs, data showed on Thursday, highlighting persistent price pressures that may prod the central bank to raise interest rates next week.

Bank of Japan Governor Kazuo Ueda said Wednesday the bank will debate whether to raise its key rate at its policy meeting next week a

The remarks, which echo those made by BOJ Deputy Governor Ryozo Himino on Tuesday, pushed up the yen as markets continued to price in the chance of a rate hike at the bank's next policy meeting on Jan. 23-24.

The Bank of Japan is expected to raise interest rates at its January meeting as inflation pressures intensify, setting the stage for significant market reactions.

Governor Kazuo Ueda yesterday joined his deputy in raising market expectations of a potential interest rate hike next week, boosting the yen and signaling the central bank is doing its utmost to avoid a global market crash that followed the rate hike in July last year.