1. Ardington, C., Case, A., & Hosegood, V. (2009). Labor supply responses to large social transfers: Longitudinal evidence from South Africa. American Economic Journal: Applied Economics, 1(1), 22–48.
2. Blau, D., & Goodstein, R. (2010). Can social security explain trends in labor force participation of older men in the United States? Journal of Human Sources, 45(2), 328–363.
3. Borsch-Supan, A. (2000). Incentive effects of social security on labor participation: Evidence in Germany and across Europe. Journal of Population Economics, 78, 25–49.
4. Cai, F., Giles, J., O’Keefe, P., & Wang, D. (2012). The elderly and old age support in rural China: Challenges and prospects. The World Bank.
5. Cai, Y., & Cheng, Y. (2014). Pension reform in China: Challenges and opportunities. Journal of Economic Survey, 28(4), 636–651.