Facing a ballooning government debt and a still-fragile economy, newly appointed Finance Minister Sadakazu Tanigaki hopes to pursue a tight fiscal policy and allocate the budget effectively.

Speaking with journalists, Tanigaki also issued a warning over the yen's recent surge against the dollar, saying his ministry is ready to intervene to counter speculative currency-trade maneuvers.

A stronger yen could hurt the country's nascent economic recovery by cutting the value of exporters' dollar receipts when converted into yen.