The Korean won is poised to be the biggest beneficiary among Asian currencies after U.S. and Japanese authorities carried out a coordinated yen-buying intervention, given the won's relatively high sensitivity to moves in the Japanese yen, analysts said Tuesday. "The suppression on the dollar-yen rate should favor a lower dollar-won rate, along with other Asian currencies against the U.S. dollar, with the Korean won emerging as a clear beneficiary," said Stephen Chiu, chief emerging markets FX strategist at Bloomberg Intelligence. Barclays also noted in a research published Monday that yen-sensitive Asian currencies, particularly the Korean won, could extend gains in the short term. While most Asian currencies have relatively low sensitivity to moves in the Japanese yen, the Korean won, Singapore dollar and Thai baht are the most responsive, in that order, it said. "Following an almost uninterrupted decline in the dollar-won exchange rate since early July ... the currency (won) received additional support after the dollar-yen rate fell sharply amid reports of Japanese intervention," said