Uncertain workers may need help from 401(k) plan sponsors to achieve a guaranteed income stream, BlackRock study says.

The proposal would have asked voters to authorize the Legislature to halt enrollment in the public pension system for elected officials and judges and create a new defined-contribution plan for new enrollees.

An examination shows employees receiving benefits without paying into the system, including missing reimbursements for overpayments.

A Massachusetts city's pension fund has sued mega Web-search company Google, over concerns that Google's proposed stock split would generate non-voting shares.