@article{HofstetterMillerKrohmeretal.2021,
  author    = {Reto Hofstetter and Klaus Matthias Miller and Harley Krohmer and Z. John Zhang},
  title     = {A de-biased direct question approach to measuring consumers' willingness to pay},
  journal   = {International journal of research in marketing},
  volume    = {38.2021},
  number    = {1},
  pages     = {70 -- 84},
  doi       = {10.1016/j.ijresmar.2020.04.006},
  year      = {2021},
}