统计学家兼经济学家高桥洋一（Yoichi Takahashi）对我说，2月份，日元在短短十天内升值8 % ， 这是反常现象，应属投机性袭击。
The statistician and economist Yoichi Takahashi tells me that the yen’s 8% appreciation over just ten days in February is abnormal, and probably fueled by speculative attacks.