The g7 should be concerned about carry trades not just because they could suddenly unwind and trigger financial turmoil but also because the yen ' s misalignment is distorting the world economy 七国集团应给予套息交易足够的重视,不仅因为套息交易可能突然平仓并引发金融危机,还因为它扭曲了日元汇率,也扭曲了全球经济。