1. Aarssen, K., & Kuipers, B. J. (2007). Everyone gains, but some more than others. In O. W. Steenbeek & S. G. Van Der Lecq (Eds.), Costs and benefits of collective pension systems (pp. 137–156). New York: Springer.
2. AitSahlia, F., Doellman, T., & Sardarli, S. (2015). Efficiency, spanning and the Fiduciary in 401(k) plans (Working paper). University of Florida, 31 pages.
3. Allen, S. G., & Clark, R. L. (1987). Pensions and firm performance. In M. M. Kleiner, R. N. Block, M. Roomkin, & S. W. Salsburg (Eds.), Human resources and the performance of the firm (pp. 195–242). Madison: Industrial Relations Research Association.
4. Allen, S. G., Clark, R. L., & Sumner, D. A. (1986). Post retirement adjustments of pension benefits. Journal of Human Resources, 21(1), 118–137.
5. Almeida, B., & Fornia, W. B. (2008). A better bang for the buck: The economic efficiencies of defined benefit plans. Washington, DC: National Institute on Retirement Security.