The Bank of Japan claimed its readiness to ease monetary policy again, amid deepening concerns that Japan may slip into recession. The BoJ has already increased the size of its asset-purchase program by JPY10 trillion ($127 billion) to a total of JPY80 trillion, in order to boost slowing economic activity. As the economy is slowing, the country may not achieve the BOJ's 1 per cent inflation target in 2012.
"If these risks materialize, there's a chance Japan may slip into recession. Buying more risky assets is a possible option."
The Nikkei 225 Stock Average fell 0.89 per cent, or 79.71 points, to 8,870.16. The broader Topix Index erased 1.10 per cent, or 8.17, to 737.42.