1. Aaron HJ (2014) The fiscal challenges of population aging: the contrasting cases of the United States and Japan. Public Policy Review 10(2):277–300
2. Arentz E (2015) Causes and economic consequences of the baby boom, policy interns https://policyinterns.com/2015/06/25/causes-economic-conseqences-ot-the-baby-boom
3. Asia Times (2016, February 28) China to raise retirement age, says researcher. Asia Times, http://atimes.com/2016/02/china-plans-to-raise-retirement-age-researcher/
4. Attaraian J (2003) Another greenspan social-security reform? Mises Daily, 4 Mar 2003 accessed at https://Mises.org/library/another-greenspan-social-security-reform
5. Bloom DE, Canning D (2004) Global demographic change: dimensions and economic significance. National bureau of economic research working paper series no 10817 http://www.nber.org/papers/w10817