Japan reiterated a warning that "full attention" should be paid to market volatility in its monthly economic report published on Tuesday, following the government's repeated market interventions in the wake of the yen's slide to a 32-year low.

With a yen-buying operation last week estimated at a record ¥5.5 trillion ($36.95 billion), and another suspected intervention Monday, Japan has been attempting to stem the currency's depreciation that has jacked up costs of imported goods for households and businesses.

The October economic report kept the overall assessment of the economy unchanged for a fourth month, saying it was seeing a moderate recovery, though it raised its view on business spending while downgrading its assessment of imports.