This MRRC working paper was subsequently published as:

Elder, Todd, Powers, Elizabeth T.. “The Incredible Shrinking Program: Trends in SSI Participation of the Elderly.” Research on Aging 28(3, May).

Elder, Todd, and Elizabeth T. Powers, “The Effect of Falling SSI Generosity on SSI Participation among the Aged since the 1970s.” Proceedings of the 97th Annual Conference on Taxation of the National Tax Association, 2007.