China's national pension fund will not make significant changes to its investment portfolio despite suffering big losses in equities, the fund's chairman, Dai Xianglong said in comments published on Monday.

As cities and states struggle with ballooning retirement costs, accounting rule makers started an ambitious project Thursday to force state and local governments to issue better numbers and reveal the true cost of their pension promises.

Public pension actuaries use old methods that have fallen far out of sync with the economic mainstream, The New York Times reports.

The chief executive officer of the California Public Employees' Retirement System (Calpers), the biggest U.S. pension fund, said on Monday he would retire, days after its chief investment officer said he would step down.

South Korea's National Pension Service, the world's fifth-biggest pension fund, said on Thursday it was shying away from U.S. Treasurys because of falling yields and the weakening dollar.