Japan will take "decisive" action if there are speculative moves in the currency market, Finance Minister Satsuki Katayama said Friday, after the yen weakened to the upper 161 zone against the U.S. dollar, nearing its lowest level in more than 39 years."There is no change at all in our stance to take decisive action" when needed, Katayama told reporters, amid expectations that the Japanese authorities could intervene in the currency market to stem the yen's depreciation.The yen fell as far as 161.81 against the dollar overnight in New York, its lowest level since July 2024, as the U.S. curr…READ FULL ARTICLE