South Korea is stepping up surveillance of the won after the currency tumbled to a 13-year low, with the authorities warning that they are watching for any offshore speculative factors. There is concern that market sentiment may be one-sided as external conditions exert pressure on currencies, Finance Minister Choo Kyung-ho said, after holding discussions with the central bank, regulator and market players. The authorities will step up monitoring on possible speculative offshore FX trades, he added. The tone of the latest warning is stronger than a caution issued in June, and comes as the won tumbled to a 13-year low ... (full story)