@misc{ConesaKrueger2005,
  author    = {Juan Carlos Conesa and Dirk Krueger},
  title     = {On the optimal progressivity of the income tax code},
  booktitle = {Center for Financial Studies (Frankfurt am Main): CFS working paper series ; No. 2005,10},
  number    = {March 17, 2005},
  institution = {Center for Financial Studies (CFS)},
  series    = {CFS working paper series},
  number    = {2005, 10},
  type      = {workingpaper},
  year        = {2005},
}