DiTraglia F (2026). _ivreg2r: Extended Instrumental Variables
Estimation with Diagnostics_. R package,
<https://github.com/restatr/ivreg2r>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {ivreg2r: Extended Instrumental Variables Estimation with Diagnostics},
    author = {Francis DiTraglia},
    year = {2026},
    note = {R package},
    url = {https://github.com/restatr/ivreg2r},
  }

The Stata ivreg2 command that inspired this package is described in:

  Baum C, Schaffer M, Stillman S (2003). “Instrumental Variables and
  GMM: Estimation and Testing.” _The Stata Journal_, *3*(1), 1-31.
  doi:10.1177/1536867X0300300101
  <https://doi.org/10.1177/1536867X0300300101>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Instrumental Variables and {GMM}: Estimation and Testing},
    author = {Christopher F. Baum and Mark E. Schaffer and Steven Stillman},
    journal = {The Stata Journal},
    year = {2003},
    volume = {3},
    number = {1},
    pages = {1--31},
    doi = {10.1177/1536867X0300300101},
  }

Baum C, Schaffer M, Stillman S (2007). “Enhanced Routines for
Instrumental Variables/Generalized Method of Moments Estimation and
Testing.” _The Stata Journal_, *7*(4), 465-506.
doi:10.1177/1536867X0800700402
<https://doi.org/10.1177/1536867X0800700402>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Enhanced Routines for Instrumental Variables/Generalized Method of Moments Estimation and Testing},
    author = {Christopher F. Baum and Mark E. Schaffer and Steven Stillman},
    journal = {The Stata Journal},
    year = {2007},
    volume = {7},
    number = {4},
    pages = {465--506},
    doi = {10.1177/1536867X0800700402},
  }