@article{
  author = {Jafari, Ali, Amirabdollahy, Ali},
  title = {The impact of business group affiliation on investment efficiency: The mediating role of product market competition},
  journal = {Rahbord-e-Tousee},
  year = {2026},
  volume = {22},
  number = {85},
  pages = {376-405},
  doi = {}
}