@article{newsbasedbusinesssentimentandits,
  title = {News-based Business Sentiment and its Properties as an Economic Index},
  author = {Kazuhiro Seki and Yusuke Ikuta and Yoichi Matsubayashi},
  year = {2021},
  eprint = {2110.10340},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2110.10340v1},
}