{
  "paper": {
    "rank": 35,
    "paper_id": "aeraej-147",
    "title": "Indirect Savings from Public Procurement Centralization",
    "authors": "Clarissa Lotti; Arieda Mu\u00e7o; Giancarlo Spagnolo; Tommaso Valletti",
    "year": 2024,
    "journal": "American Economic Journal: Economic Policy",
    "doi": "10.1257/pol.20220357",
    "package_bytes": 3531150,
    "source_specification": "Table 2"
  },
  "mapping": {
    "paper_id": "aeraej-147",
    "match": true,
    "outcome": "lprice",
    "treatment": "post_consip",
    "unit": "panel_id",
    "time": "month_year",
    "cluster": "id",
    "mutate": {
      "panel_id": "interaction(id, goodid, drop = TRUE)"
    },
    "unit_fe": "id",
    "extra_fe": [
      "goodid"
    ],
    "note": "Adoption is indexed by public body and product. Source public-body, product and month effects and all 13 quantity controls are retained; purchases are not collapsed for regression.",
    "assessment_status": "unsupported_sample",
    "assessment_reason": "The public-body-by-product purchase panel has too little common adoption-baseline and untreated fixed-effect support. The common-sample preparation leaves no estimable comparison; the source-sample coefficient itself reproduces."
  },
  "status": "unsupported_sample",
  "source_fit": {
    "formula": "list(linear = lprice ~ post_consip + quantity1 + quantity2 +      quantity3 + quantity4 + quantity5 + quantity6 + quantity7 +      quantity8 + quantity9 + quantity10 + quantity11 + quantity12 +      quantity13, fixef = ~id + goodid + month_year)",
    "coefficients": {
      "post_consip": -0.274970175888077,
      "quantity1": -0.00423576913599368,
      "quantity2": -0.00151756244578398,
      "quantity3": -0.00151185716480092,
      "quantity4": 1.40682772965042e-07,
      "quantity5": -0.00504354600699343,
      "quantity6": -0.000435629173952347,
      "quantity7": -1.03004496075961e-05,
      "quantity8": -1.37594372351081e-08,
      "quantity9": -4.56663779818002e-06,
      "quantity10": -0.00180480503237556,
      "quantity11": -7.52565381023026e-08,
      "quantity12": -0.000335691321965198,
      "quantity13": -0.000808268418407266
    },
    "se": {
      "post_consip": 0.0688755287327805,
      "quantity1": 0.00128679077919967,
      "quantity2": 0.00186069889307078,
      "quantity3": 0.000516451596102249,
      "quantity4": 5.59175894652767e-07,
      "quantity5": 0.0249386805707529,
      "quantity6": 0.000258819723210785,
      "quantity7": 4.3579411618639e-06,
      "quantity8": 1.34219971538282e-08,
      "quantity9": 1.5517123629809e-06,
      "quantity10": 0.00175763319688287,
      "quantity11": 2.71135787696619e-08,
      "quantity12": 0.000158682604172018,
      "quantity13": 0.000584538223717709
    },
    "n": 3101
  },
  "source_check": {
    "source_term": "post_consip",
    "source_beta": -0.274970175888077,
    "template_source_sample_beta": -0.2749701758881223,
    "template_source_sample_n": 3101,
    "template_source_sample_se": 0.0688755281239835,
    "same_point_specification": true,
    "dropped_missing_identifiers": 0,
    "controls": {
      "x001": "quantity1",
      "x002": "quantity2",
      "x003": "quantity3",
      "x004": "quantity4",
      "x005": "quantity5",
      "x006": "quantity6",
      "x007": "quantity7",
      "x008": "quantity8",
      "x009": "quantity9",
      "x010": "quantity10",
      "x011": "quantity11",
      "x012": "quantity12",
      "x013": "quantity13",
      "x014": "goodid::factor(d[[k]])5",
      "x015": "goodid::factor(d[[k]])6",
      "x016": "goodid::factor(d[[k]])7",
      "x017": "goodid::factor(d[[k]])8",
      "x018": "goodid::factor(d[[k]])9",
      "x019": "goodid::factor(d[[k]])10",
      "x020": "goodid::factor(d[[k]])14",
      "x021": "goodid::factor(d[[k]])16",
      "x022": "goodid::factor(d[[k]])17",
      "x023": "goodid::factor(d[[k]])19",
      "x024": "goodid::factor(d[[k]])20",
      "x025": "goodid::factor(d[[k]])21"
    },
    "absolute_coefficient_difference": 4.529709940470639e-14
  },
  "reason": "The public-body-by-product purchase panel has too little common adoption-baseline and untreated fixed-effect support. The common-sample preparation leaves no estimable comparison; the source-sample coefficient itself reproduces."
}