@article{econhot_econhot-cited-e2b1a2ed71c9a2fe,
  title = {Instrumental Variables and GMM: Estimation and Testing},
  author = {Christopher F. Baum and Mark E. Schaffer and Steven Stillman},
  journal = {The Stata Journal Promoting communications on statistics and Stata},
  year = {2003},
  volume = {3},
  number = {1},
  pages = {1-31},
  doi = {10.1177/1536867x0300300101},
  url = {https://doi.org/10.1177/1536867x0300300101}
}