@article{identificationofdirectsociogeographical,
  title = {Identification of Direct Socio-Geographical Price Discrimination: An Empirical Study on iPhones},
  author = {Davidson Cheng},
  year = {2022},
  eprint = {2201.07903},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2201.07903v1},
}