{
  "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": "wb_indicators.csv contains 44 regional/income/other aggregate entities mixed with countries/economies",
      "handling": "excluded via region == 'Aggregates' in wb_entities.csv"
    },
    {
      "issue": "20 countries/economies in 2023 lack an indicator (GDPpc missing: 20, LE missing: 0): ASM, CHI, CUB, ERI, GIB, GUM, IMN, LIE, MAF, MCO, MNP, NCL, PRK, PYF, SSD, SYR, VEN, VGB, VIR, YEM; mostly small territories and conflict/sanctioned economies, so missingness is not random",
      "handling": "excluded from the estimate, counted in n_excluded_missing; no imputation"
    },
    {
      "issue": "implausibly large year-to-year life-expectancy swings (>10 years) in: CAF (max |dLE|=38.6), SSD (max |dLE|=16.6), PSE (max |dLE|=11.5); e.g. CAF LE 18.8 in 2022 vs 57.4 in 2023; PSE 2023 LE 65.2 vs 76.7 in 2022 (plausibly war-related; not verified)",
      "handling": "only 2023 values enter the estimate; values kept as published (no editing); influence checked with leave-one-out slopes"
    },
    {
      "issue": "4 entity names in wb_entities.csv carry trailing whitespace",
      "handling": "cosmetic; joins use iso3 only"
    }
  ],
  "n_input_rows": {
    "wb_indicators.csv": 2349,
    "wb_entities.csv": 296
  },
  "n_analysed": 197,
  "random_seed": null,
  "se_type": "HC3",
  "ci_method": "beta +/- 1.959964 * HC3 SE (normal approximation)",
  "complete_countries_by_year": {
    "2015": 199,
    "2016": 199,
    "2017": 199,
    "2018": 199,
    "2019": 199,
    "2020": 199,
    "2021": 199,
    "2022": 199,
    "2023": 197
  },
  "n_countries_in_year": 217,
  "n_aggregate_entities_excluded": 44,
  "effect_se_hc0": 0.20736485591704354,
  "effect_se_hc1": 0.2084255526375312,
  "effect_se_hc2": 0.20901105806015902,
  "effect_se_hc3": 0.21067528691162227,
  "effect_se_classical": 0.22246758287864518,
  "loo_slope_min": 5.205387994234399,
  "loo_slope_min_dropped": "TCD",
  "loo_slope_max": 5.327563424394044,
  "loo_slope_max_dropped": "GRL",
  "rmse_reduction_share": 0.491977495120151,
  "le_gain_per_doubling_gdp": 3.650926427745336,
  "mean_life_expectancy": 73.47408158883249,
  "mean_log_gdp_pc": 9.664953946043608
}