@article{syntheticcontrolmethodsbydensitymatching,
  title = {Asymptotically Unbiased Synthetic Control Methods by Density Matching},
  author = {Masahiro Kato and Akari Ohda},
  year = {2023},
  eprint = {2307.11127},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2307.11127v4},
}