@article{blackwellapproachabilityandgradientequil,
  title = {Blackwell Approachability and Gradient Equilibrium are Equivalent},
  author = {Brian W. Lee and Nika Haghtalab and Michael I. Jordan and Ryan J. Tibshirani},
  year = {2026},
  eprint = {2606.27315},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.27315},
}