To cite package ‘etwfe’ in publications use:

McDermott G (2025). etwfe: Extended Two-Way Fixed Effects. R package version 0.5.0.99, https://github.com/grantmcdermott/etwfe.

Corresponding BibTeX entry:

  @Manual{,
    title = {etwfe: Extended Two-Way Fixed Effects},
    author = {Grant McDermott},
    year = {2025},
    note = {R package version 0.5.0.99},
    url = {https://github.com/grantmcdermott/etwfe},
  }