@article{envelopetheoremanddiscontinuous,
  title = {Envelope theorem and discontinuous optimisation: the case of positioning choice problems},
  author = {Jean-Gabriel Lauzier},
  year = {2021},
  eprint = {2112.06815},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2112.06815v1},
}