{
  "task_id": "F6-dev-01",
  "analysis_year": 2023,
  "n_excluded_missing": 20,
  "baseline_metric": 7.07645404460588,
  "model_metric": 3.5949979094078177,
  "pearson_r": 0.8613437957840087,
  "r_squared": 0.7419131345356038,
  "effect_estimate": 5.267173451958655,
  "intercept": 22.56709274982858,
  "effect_se": 0.21067528691162227,
  "effect_ci_low": 4.854257477179233,
  "effect_ci_high": 5.6800894267380775,
  "conclusion": "positive_effect",
  "feasibility": "complete",
  "feasibility_reason": null,
  "data_issues": [
    {
      "issue": "Entity names differ between files for ['LCN', 'SSF'] (trailing whitespace in metadata names; all are aggregates)",
      "handling": "Joined on iso3 only; names ignored."
    },
    {
      "issue": "wb_indicators.csv mixes countries with regional/income aggregates (396 aggregate rows, 44 aggregate entities)",
      "handling": "Excluded all entities with region == 'Aggregates' per the task rule."
    },
    {
      "issue": "CAF: life expectancy jumps by >10 years between consecutive years (ending in [2019, 2020, 2021, 2022, 2023]); series 2015-2023 = {2015: 51.9, 2016: 51.0, 2017: 45.2, 2018: 52.3, 2019: 31.5, 2020: 50.6, 2021: 40.3, 2022: 18.8, 2023: 57.4}",
      "handling": "Only the 2023 cross-section is used; values kept as published (no basis to overwrite official data). Robustness: slope re-estimated excluding all such entities (see out/sensitivity.json)."
    },
    {
      "issue": "PSE: life expectancy jumps by >10 years between consecutive years (ending in [2023]); series 2015-2023 = {2015: 74.6, 2016: 74.9, 2017: 75.2, 2018: 75.4, 2019: 75.8, 2020: 75.0, 2021: 73.9, 2022: 76.7, 2023: 65.2}",
      "handling": "Only the 2023 cross-section is used; values kept as published (no basis to overwrite official data). Robustness: slope re-estimated excluding all such entities (see out/sensitivity.json)."
    },
    {
      "issue": "SSD: life expectancy jumps by >10 years between consecutive years (ending in [2018]); series 2015-2023 = {2015: 39.8, 2016: 36.7, 2017: 35.4, 2018: 51.9, 2019: 58.1, 2020: 57.6, 2021: 57.0, 2022: 57.2, 2023: 57.6}",
      "handling": "Only the 2023 cross-section is used; values kept as published (no basis to overwrite official data). Robustness: slope re-estimated excluding all such entities (see out/sensitivity.json)."
    },
    {
      "issue": "20 countries/economies lack an indicator in 2023 (all missing GDP pc PPP): ASM, CHI, CUB, ERI, GIB, GUM, IMN, LIE, MAF, MCO, MNP, NCL, PRK, PYF, SSD, SYR, VEN, VGB, VIR, YEM; missingness is not random (small territories/microstates and conflict/sanctioned economies)",
      "handling": "Listwise exclusion, no imputation (task rule); selection bias discussed in report."
    }
  ],
  "n_input_rows": {
    "wb_indicators.csv": 2349,
    "wb_entities.csv": 296
  },
  "n_analysed": 197,
  "random_seed": 20261029
}