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OITA, Japan, March 23 (Reuters) - Bank of Japan Governor board member Ryuzo Miyao said on Wednesday the Group of Seven nations' currency intervention last Friday had certain effects in smoothing a rapid rise in the yen.
Miyao also told a news conference he wanted to carefully examine future economic data to grasp the quantitative impact of this month's devastating earthquake and tsunami in northeast Japan.
The BOJ last week eased its ultra-loose monetary policy further by doubling the size of an asset buying scheme and has supplied record funds to banks to shore up confidence in the economy, hit by a triple blow of the massive earthquake, tsunami and nuclear safety crisis.
Miyao, a lifelong academic and expert on monetary policy, joined the board in March of last year. He is known for his research on inflation targeting and some analysts say he doubts the effectiveness of such a policy. (Reporting by Rie Ishiguro; Editing by Edmund Klamann)