@misc{CampbellDiebold2005,
  author    = {Sean D. Campbell and Francis X. Diebold},
  title     = {Stock returns and expected business conditions : half a century of direct evidence},
  booktitle = {Center for Financial Studies (Frankfurt am Main): CFS working paper series ; No. 2005,22},
  institution = {Center for Financial Studies (CFS)},
  series    = {CFS working paper series},
  number    = {2005, 22},
  type      = {workingpaper},
  year        = {2005},
}