{
  "citation": "Huntington-Klein, N. (2021). The Effect: An Introduction to Research Design and Causality. CRC Press; online edition, chapter 20 (Regression Discontinuity), replicating Manacorda, Miguel and Vigorito (2011), AEJ: Applied 3(3): 1-28.",
  "deviation_evidence": "Recorded before this track's software-reference run and before any dry run, from the printed table: Table 20.1 states that its standard errors are HC3, while infer.rdd computes HC1 (its only unclustered option) and the reference follows the tool's declared HC1. The printed cell is recorded and non-required on T1.",
  "deviation_fields": [
    "se"
  ],
  "doi": null,
  "excerpt": "Participation 0.093** (0.044)",
  "independent": null,
  "item_set": null,
  "kind": "textbook",
  "known_deviation": "se_convention",
  "licence": "Copyright Nick Huntington-Klein (The Effect, CRC Press); cited, not reproduced.",
  "locator": "Table 20.1 (The Effect of Government Payments on Support, Regression Discontinuity Estimates), column 'Quadratic', row 'Participation'",
  "metric": null,
  "n_items": null,
  "page": "online edition, chapter 20, Table 20.1",
  "read_copy_sha256": "b6f751cfa056dc32718bdd79f6b25518a6acd9e9923a8fd12ef29ac9342413eb",
  "retrieved_at": "2026-10-15",
  "se": 0.044,
  "se_as_published": "0.044",
  "source_id": "mmv_2011.tab20_1_c1.paper",
  "tolerance_reason": null,
  "units": "support for the government (0, 0.5, 1)",
  "url": "https://theeffectbook.net/ch-RegressionDiscontinuity.html",
  "value": 0.093,
  "value_as_published": "0.093",
  "verified_by": "primary_source",
  "verified_note": "Read on 2026-10-15 from the free online edition of The Effect (theeffectbook.net, chapter 20); read_copy_sha256 is the sha256 of the chapter's decompressed HTML as served that day. Table 20.1 is a modelsummary table of the R code printed above it: Support on Income_Centered*Participation plus I(Income_Centered^2)*Participation (column 'Quadratic', all 1,948 households) and Support on Income_Centered*Participation weighted by max(0, 1 - 100|Income_Centered|) (column 'Linear with Kernel Weight', Num.Obs. 937); the table's last rows state 'Std.Errors HC3 HC3'. Data check made before any estimate: Participation equals (Income_Centered <= 0) on every row, no row has Income_Centered exactly 0 or exactly 0.01 in absolute value, every |Income_Centered| is below 0.02, and 937 rows lie strictly within 0.01 of the cutoff (400 above it, 537 below), as the table's Num.Obs."
}