Japanese annual wholesale inflation hit a 27-year high of 3 percent in January due to rising oil and other raw material costs, but the Bank of Japan is likely to sit tight on rates in the face of cost-push inflation and slowing global growth.

The data follows a pessimistic outlook from financial chiefs in the Group of Seven industrialised countries when they met in Tokyo on Saturday, amid fears of a recession in the United states in the wake of the subprime crisis.

Reinforcing fears of a slowdown that would hit exports, Japan's current account shrank more than expected in December from a year earlier.

Fears that the Japan could be hit by a U.S. slowdown have prompted investors to speculate the BOJ may follow the U.S. Federal Reserve in cutting interest rates later this year.