@article{ketcham2012-29522298,
  author  = {Ketcham, Jonathan D. and Lucarelli, Claudio and Miravete, Eugenio J. and Roebuck, M. Christopher},
  title   = {{Sinking, Swimming, or Learning to Swim in Medicare Part D}},
  journal = {American Economic Review},
  year    = {2012},
  doi     = {10.1257/aer.102.6.2639},
  pmid    = {29522298},
  url     = {https://doi.org/10.1257/aer.102.6.2639}
}