1. The effect of Medicare supplemental insurance on Medicare expenditures;Atherly;Journal International Journal of Health Care Finance and Economics,2002
2. Centers for Medicare & Medicaid Services 2009 Enrollment information, as of February 1, 2009 http://www.cms.hhs.gov/PrescriptionDrugCovGenIn/
3. A semi-parametric Bayesian approach to the instrumental variable problem;Conley;Journal of Econometrics,2008
4. Estimating the moral hazard effect of supplemental medical insurance in the demand for prescription drugs by the elderly;Coulson;American Economic Review,1995
5. The insurance effect on prescription drug expenditures among the elderly: findings from the 1997 Medical Expenditure Panel Survey;Curtis;Medical Care,2004