@article{sparsesyntheticcontrols,
  title = {Predictor Selection for Synthetic Controls},
  author = {Jaume Vives-i-Bastida},
  year = {2022},
  eprint = {2203.11576},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2203.11576v2},
}