1. Becker, Gary S. 1981. A Treatise on The Family. Chicago: Harvard University Press; Becker, Gary S. 1964. Human Capital: A Theoretical and Empirical Analysis, with Special Reference to Education. New York: Columbia University Press; Becker, Gary S. 1976. The Economic Approach to Human Behaviour. Chicago: University of Chicago Press; Schultz, Theodore W. 1963. Economic Value of Education. New York: Columbia University Press.
2. Cai, Fang, and Kam Wing Chan. 2009. “The Global Economic Crisis and Unemployment in China.” Eurasian Geography and Economics 50(5):513–531.
3. Cai, Fang, and Meiyan Wang. 2005. “Challenge facing China’s Economic Growth in Its Aging but not Affluent Era.” China and World Economy 14: 20–31.
4. Chinese Communist Party Central Committee, Document No. 15. 2013. “Zhonggong zhongyang guowuyuan yinfa guanyu tiaozheng wanshan shengyu zhengce de yijian (Opinions Issued by the CCP Central Committee and the State Council on ‘Adjusting and Improving the Family Planning Policy’).” Beijing: 30 December 2013.
5. Chinese Communist Party Central Committee, Document No. 40. 2015. “Zhonggong zhongyang guowuyuan guanyu shishi quanmian lianghai zhengce gaige wanshan jihua shengyu fuwu guanli de jueding (Decision of the Central Committee of the CCP and the State Council on Implementing the Universal Two-Child Policy and Reforming and Improving the Management of Family Planning Services).” Beijing: Chinese Communist Party Central Committee, 31 December 2015.