State Street Corp. to cut 6% of work force

State Street Corp., parent of State Street Global Advisors, announced Wednesday that it would cut 6% of its worldwide work force - between 1,600 and 1,800 positions - by March 31. About two-thirds of the jobs to be cut will be in North America, according to a news release from Boston-based State Street. An SSgA spokeswoman confirmed that cuts would be made across the broad organization, but she declined to say how many would be let go at the money management arm. The reductions "will largely be achieved by consolidating middle and senior management ranks," according to a news release.