6Board of Trustees of the Federal Old-Age and Survivors Insurance and Disability Insurance Trust Funds, March 23, 2005,The 2005 Annual Report of the Board of Trustees of the Federal Old-Age and Survivors Insurance and Disability Insurance Trust Funds Communication,Washington, D.C.
7The World Bank, 2005, Old-Age Income support in the 21st Century: An International Perspective on Pension Systems and Reform,The World Bank, Washington DC.
5Noriyuki Takayama,"Pension Reform in Japan",A Report presented at International Conference on Pensions in Asia:Incentives,Compliance and Their Role in Retirement.
6Noriyuki Takayama,"Japan's 2012 Social Security Pension Reform",PIE/CIS DP-574,2012:p5.
7Tetsuo Kabe,"Japan's Public Pension Reforms",a paper presented at International Conference on Social Security Reform,February,2006:p.13.
8Johannes Hagen,"A History of the Swedish Pension System",Uppsala Center for Fiscal Studies Department of Economics Working Paper 2013-7,May 2013:p.32.
9Goran Normann and Daniel J.Mitchell,Pension Reform in Sweden:Lessons for American Policy Makers,The Heritage Foundation Backgrounder Executive Summary,June 2000:p.4.
10Lillian Liu,"Public Pension Reform in Japan",Social Security Bulletin vol.63,2000(4):pp.103-105.