Dollar drops as volatility hits 8-month high

New York

THE dollar weakened for a second consecutive week for the first time since June as traders pushed out expectations for US interest-rate increases to the end of next year with global economic growth faltering.

A gauge of expectations for volatility reached an eight-month high as investors fretted about the prospects for global growth, US monetary policy and the spread of Ebola. The yen rallied against most major currencies and rose to th…