Gaynor, Martin; Li, Jian; Vogt, William - In: Forum for Health Economics & Policy 10 (2007) 2, pp. 1084-1084
Many U.S. employers have recently adopted less generous prescription drug benefits. In addition, in 2006 the U.S. began to offer prescription drug insurance to approximately 42 million Medicare beneficiaries. We used data on individual health insurance claims and benefit data from 1997 to 2003...