@article{aresearchoncrosssectionalreturn,
  title = {A Research on Cross-sectional Return Dispersion and Volatility of US Stock Market during COVID-19},
  author = {Jiawei Du},
  year = {2020},
  eprint = {2007.11546},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2007.11546v2},
}