TOKYO, Aug 4 : Japan and the United States will "certainly" conduct joint intervention again if the yen shows signs of resuming its downtrend, said Atsushi Takeuchi, a former central bank official involved in Tokyo's market forays more than a decade ago.The yen held gains above recent 40-year lows on Monday a

Japan and the U.S. may unveil a joint policy next week to defend the yen after record interventions in April and May.

US and Japan prepare joint yen intervention for Monday, the first since 2011. Here's what a $5-10 billion yen purchase means for crypto markets.