As stocks snoozed through August, the economic debate raged about whether the improving data were a true, V-shaped global recovery or simply the first leg of an economic W.

• 股价在8月份打瞌睡之际，一场经济辩论激烈展开，其主题是：数据不断好转，代表着真正的V型全球复苏，还是只是W型经济走势的第一阶段？