{
  "citation": "statsmodels 0.15.0: the reference specification of angrist_krueger_1991 tab5_c1 (infer.ols, figure 'coef.educ') 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": "angrist_krueger_1991: Table V (OLS and TSLS estimates of the return to education for men born 1930-1939: 1980 Census), column (1) OLS, row 'Years of education'",
  "metric": null,
  "n_items": null,
  "page": null,
  "read_copy_sha256": null,
  "retrieved_at": "2026-10-15",
  "se": 0.00033900670357195307,
  "se_as_published": null,
  "source_id": "angrist_krueger_1991.tab5_c1.software",
  "tolerance_reason": null,
  "units": null,
  "url": "https://pypi.org/project/statsmodels/0.15.0/",
  "value": 0.0710810458289115,
  "value_as_published": null,
  "verified_by": "software_run",
  "verified_note": "sm.OLS(lwklywge, add_constant(['educ', 'yob_30', 'yob_31', 'yob_32', 'yob_33', 'yob_34', 'yob_35', 'yob_36', 'yob_37', 'yob_38'])).fit(cov_type='nonrobust') on asciiqob (asciiqob.txt of the file pinned at sha256 0b6c505e52fd6c9f6194c356c91688acf2f8937b5023a84e754e942c9a2f2dcc, after its 32 declared transforms); n_obs = 329509. The tool infer.ols (magi_infer, numpy) does not call statsmodels. Written by scripts/paper_repro_reference.py."
}