@article{differenceindifferencesviacommon,
  title = {Simple Difference-in-Differences Estimation in Fixed-T Panels},
  author = {Nicholas Brown and Kyle Butts and Joakim Westerlund},
  year = {2023},
  eprint = {2301.11358},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2301.11358v2},
}