THE day before Thanksgiving is generally a dull time in American offices, as workers lackadaisically shove papers around their desks until it is time to knock off early for the holiday.

• 过去一周，欧洲及美国中央银行的货币政策都有所变化，欧元对美元汇率上涨，贸易商在欧元区享受着高汇率，大西洋彼岸却趋于平稳。