@article{BommaritoII2017MeasuringAndModelingTheUs,
  author = {Bommarito II, M. J. and Katz, D. M.},
  title = {Measuring and modeling the US regulatory ecosystem},
  journal = {Journal of Statistical Physics},
  year = {2017},
  url = {https://arxiv.org/abs/1612.09244}
}