@article{syntheticlearnermodelfreeinferenceon,
  title = {Synthetic learner: model-free inference on treatments over time},
  author = {Davide Viviano and Jelena Bradic},
  year = {2019},
  eprint = {1904.01490},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1904.01490v2},
}