@misc{BoehlLieberknecht2021,
  author    = {Gregor B{\"o}hl and Philipp Lieberknecht},
  title     = {The hockey stick Phillips curve and the zero lower bound},
  booktitle = {Working paper series / Institute for Monetary and Financial Stability ; 153},
  number    = {February 17, 2021},
  url       = {https://www.imfs-frankfurt.de/fileadmin/user_upload/IMFS_WP/IMFS_WP_153.pdf},
  institution = {Wirtschaftswissenschaften},
  series    = {Working paper series / Institute for Monetary and Financial Stability},
  number    = {153},
  type      = {workingpaper},
  pages     = {41},
  year        = {2021},
}