{
  "citation": "linearmodels 7.0: the reference specification of kessler_roth_2014 t18_2_twfe (infer.twfe, figure 'coef.Treated') on an independent code path",
  "deviation_evidence": null,
  "doi": null,
  "excerpt": null,
  "independent": true,
  "item_set": null,
  "kind": "software",
  "known_deviation": null,
  "licence": null,
  "locator": "kessler_roth_2014: The Effect, Table 18.2 (difference-in-differences estimate of the effect of active-choice phrasing on organ donor rates), row 'Treatment'; a textbook replication of Kessler and Roth (2014)",
  "metric": null,
  "n_items": null,
  "page": null,
  "read_copy_sha256": null,
  "retrieved_at": "2026-10-15",
  "se": 0.0060159007295233465,
  "se_as_published": null,
  "source_id": "kessler_roth_2014.t18_2_twfe.software",
  "tolerance_reason": null,
  "units": null,
  "url": "https://pypi.org/project/linearmodels/7.0/",
  "value": -0.022458974358974367,
  "value_as_published": null,
  "verified_by": "software_run",
  "verified_note": "PanelOLS(Rate, [Treated], entity_effects=True, time_effects=True) indexed by (State, Quarter_Num).fit(cov_type='clustered', cluster_entity=True, group_debias=True, debiased=True, count_effects=False, auto_df=False) on organ_donations (the file pinned at sha256 b758f11dd4f32c404877bc0b79a09b09d6e074318d2f91030060c9adb26fe56a, after its 3 declared transforms); n_obs = 162. The tool infer.twfe (magi_infer, numpy) does not call linearmodels. Note: infer.twfe demeans with numpy (magi_infer.did) and fits with statsmodels, not linearmodels. Written by scripts/paper_repro_reference.py."
}