@misc{mousa2021effect,
  title={The Effect of Marketing Investment on Firm Value and Systematic Risk},
  author={Musaab Mousa and Saeed Nosratabadi and Judit Sagi and Amir Mosavi},
  year={2021},
  eprint={2104.14301},
  archivePrefix={arXiv},
  primaryClass={econ.GN},
  doi={10.3390/joitmc7010064},
  url={https://arxiv.org/abs/2104.14301}
}