{
  "paper": {
    "rank": 35,
    "paper_id": "aeraej-455",
    "title": "Deregulation, Consolidation, and Efficiency: Evidence from US Nuclear Power",
    "authors": "Lucas W. Davis; Catherine Wolfram",
    "year": 2012,
    "journal": "American Economic Journal: Applied Economics",
    "doi": "10.1257/app.4.4.194",
    "package_bytes": 79706787,
    "source_specification": "Table 2 col",
    "selection_stratum": "binary_did"
  },
  "mapping": {
    "paper_id": "aeraej-455",
    "match": true,
    "outcome": "power",
    "treatment": "divested",
    "unit": "reactorid",
    "time": "date",
    "cluster": "plantid",
    "source_model_index": 1,
    "weight": "capacity",
    "ordered_periods": true,
    "source_specification": "Table 2, column 4: capacity-weighted with age polynomial",
    "note": "Reactor and date effects, age polynomial, capacity weights and plant clustering are retained.",
    "rescale_controls": true,
    "assessment_status": "backend_limit",
    "assessment_reason": "The capacity-weighted source coefficient reproduces after rescaling the age-polynomial controls. The cohort-by-month comparison exceeds the dense design budget; the sparse backend does not support these weights and covariates. They are not dropped to force a fit.",
    "source_adapter": true,
    "source_input": "nuclearpanel_091311.dta"
  },
  "status": "backend_limit",
  "source_fit": {
    "formula": "list(linear = power ~ divested + age + age2 + age3, fixef = ~reactorid +      date)",
    "coefficients": {
      "divested": 10.0611041114803,
      "age": -0.615429993446898,
      "age2": -4.19755253537227e-08,
      "age3": 6.50511177259042e-12
    },
    "se": {
      "divested": 2.08512319936801,
      "age": 1371154.17880108,
      "age2": 3.03152441340597e-07,
      "age3": 1.41017573622554e-11
    },
    "n": 36667
  },
  "source_check": {
    "source_term": "divested",
    "source_beta": 10.0611041114803,
    "template_source_sample_beta": 10.061104111479152,
    "template_source_sample_n": 36667,
    "template_source_sample_se": 2.0850943760497302,
    "same_point_specification": true,
    "dropped_missing_identifiers": 0,
    "controls": {
      "x001": "age",
      "x002": "age2",
      "x003": "age3"
    },
    "absolute_coefficient_difference": 1.149302875091962e-12
  },
  "reason": "The capacity-weighted source coefficient reproduces after rescaling the age-polynomial controls. The cohort-by-month comparison exceeds the dense design budget; the sparse backend does not support these weights and covariates. They are not dropped to force a fit."
}