1. Accounting for No-Shows in Experimental Evaluation Designs
2. (1980). Economic grouping and data disaggregtion. In (Eds.), New directions for methodology of social and behavioral science, Issues in aggregation (Vol. 6, pp. 31-41). San Francisco: Jossey-Bass.
3. Committee on Ways and Means, U.S. House of Representatives. (2000). 2000 green book: Back-ground material and data on programs within the jurisdiction of the committee on ways and means. Washington, DC: Government Printing Office.
4. (1995). Health insurance eligibility, utilization of medical care, and child health. Working paper no. 5052. Cambridge, MA: National Bureau of Economic Research.
5. Health Insurance Eligibility, Utilization of Medical Care, and Child Health