The Interaction of Public Retirement Income Programs in the United States
研究美国公共退休收入项目之间的相互作用，分析不同项目如何相互影响，对关注退休政策的经济学者有参考价值。
The Interaction of Public Retirement Income Programs in the United States by Elizabeth T. Powers and David Neumark. Published in volume 93, issue 2, pages 261-265 of American Economic Review, May 2003