@misc{lim2026_ssrn_6743559,
  author = {Lim, Boon Chuan},
  title = {Circular Financing and Concentration Risk in the AI Infrastructure Stack A Literature Review with Two-Event Empirical Evidence},
  year = {2026},
  doi = {10.2139/ssrn.6743559},
  url = {https://doi.org/10.2139/ssrn.6743559},
  note = {Working paper / preprint}
}