The impact of Medicare Part D on prescription drug use by the elderly.


This study investigates the effect of Medicare Part D on the elderly's prescription drug use and out-of-pocket costs using a difference-in-differences research design. We estimate that Medicare Part D reduced user cost among the elderly by 18.4 percent, increased their use of prescription drugs by about 12.8 percent, and increased total U.S. usage by 4.5… (More)


Blog articles referencing this paper