Bank of Japan may intervene to arrest yen rise, says Hiroshi Watanabe.
TOKYO (Reuters) – Japan may intervene in the foreign exchange market to prevent the yen from rising above 100 to the dollar, but just once given the difficulty of keeping currency rates pegged at a set level, former top currency diplomat Hiroshi Watanabe said on Thursday. Many analysts expect the yen, which hovered around 103.50…