Japan, US likely to intervene again if yen resumes slide, ex-BOJ official says

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 after the two countries launched a rare joint yen-buying intervention in a show of determination to combat a sell-off in the currency.Takeuchi said the latest joint action was highly effective in creating market perceptions that one-way weakening of the yen will not continue."What has become clear is that there are effectively no constraints preventing Japanese authorities from intervening" due to the backing of the United States, which theoretically can obtain unlimited amounts of doll