{
  "analysis_version": "1",
  "source_release": "2026-11-02-r3",
  "analysis_url": "https://www.pluraterra.com/data/insights/2026-11-02/analysis.json",
  "analysis_sha256": "7c7b1ff93ca87dd599cdbb6da9a442c986198d972c9ce76d10640a168731dbe5",
  "reproduction_url": "https://www.pluraterra.com/data/insights/2026-11-02/reproduce.py",
  "reproduction_sha256": "2d19f875a93f8e0ed1d45c6c4fc6091cbb03c8ec2286952b8395628fd59b78c7",
  "articles": [
    {
      "title": "Above the income line, without a financial buffer",
      "url": "https://www.pluraterra.com/insights/above-the-line-without-a-buffer/",
      "period": "2024"
    },
    {
      "title": "41 economies combine less output with longer lives",
      "url": "https://www.pluraterra.com/insights/more-output-does-not-guarantee-more-years/",
      "period": "2023, checked 2015\u20132024"
    },
    {
      "title": "The second paycheck has a different yield",
      "url": "https://www.pluraterra.com/insights/what-a-second-paycheck-adds/",
      "period": "2025"
    },
    {
      "title": "A 71% access average can conceal a 9% bottleneck",
      "url": "https://www.pluraterra.com/insights/the-average-hides-the-missing-service/",
      "period": "2023"
    },
    {
      "title": "A 70-place rank swing without changing the data",
      "url": "https://www.pluraterra.com/insights/seventy-places-without-new-data/",
      "period": "2023 inputs"
    },
    {
      "title": "Brussels is first in output, ninth in resident employment",
      "url": "https://www.pluraterra.com/insights/brussels-output-and-residents/",
      "period": "2023"
    },
    {
      "title": "A prosperity index is not a life evaluation",
      "url": "https://www.pluraterra.com/insights/when-people-rate-their-own-lives/",
      "period": "2023 index / 2021\u20132023 survey"
    }
  ],
  "models": [
    {
      "id": "paycheck-yield",
      "name": "Paycheck Yield",
      "definition": "Compare two OECD model couples with two children. The first earner remains at 100% of average wages; the second changes from no earnings to 67% of average wages. Net and gross amounts use the same country, year and local currency. This is a finite difference between model cases, not a marginal tax rate or an observed transition.",
      "unit": "Source-defined net gain per 100 gross",
      "period": "2025",
      "formula": "100 \u00d7 (net\u2082 \u2212 net\u2081) / (gross\u2082 \u2212 gross\u2081)",
      "limitations": "This is net income under the OECD tax definition, not necessarily money after every compulsory payment. Non-tax compulsory payments can be excluded; Colombia is a conspicuous case. Housing, childcare, commuting, service entitlements and behavioural responses are not valued. Higher is not an overall assessment of a tax system.",
      "records": 38,
      "url": "https://www.pluraterra.com/models/paycheck-yield/",
      "csv": "https://www.pluraterra.com/data/insights/2026-11-02/paycheck-yield.csv"
    },
    {
      "id": "buffer-gap",
      "name": "Buffer Gap",
      "definition": "Subtract the percentage unable to face unexpected expenses among all household types from the percentage for one-adult households with dependent children. Both groups are restricted to equivalised disposable income above 60% of the national median. The 2024 source label is a survey period; income-reference periods can differ from the current strain item. Percentages refer to people in the relevant household groups. Positive values mean the one-adult-with-children group reports more strain.",
      "unit": "Percentage points",
      "period": "2024",
      "formula": "Strain\u208done adult + children, above cutoff\u208e \u2212 strain\u208dall household types, above cutoff\u208e",
      "limitations": "The comparison group includes the subgroup; these are not independent samples. No adjustment for income within the broad band, age, housing, assets or other composition is made. Expense thresholds are country-specific. Survey sampling errors are not ingested, so small gaps are not declared statistically significant.",
      "records": 34,
      "url": "https://www.pluraterra.com/models/buffer-gap/",
      "csv": "https://www.pluraterra.com/data/insights/2026-11-02/buffer-gap.csv"
    },
    {
      "id": "longevity-lift",
      "name": "Longevity Lift",
      "definition": "GDP per person is constant-2021 PPP output. Peers have GDP between GDP\u1d62 / 1.25 and GDP\u1d62 \u00d7 1.25 in 2023. The country itself is excluded. Require at least five other economies with both observations. Subtract the unweighted peer median from life expectancy. Also recompute with factors 1.20 and 1.35; publish all memberships and results.",
      "unit": "Years relative to peer median",
      "period": "2023",
      "formula": "Life expectancy\u1d62 \u2212 median(life expectancy of income peers excluding i)",
      "limitations": "This descriptive benchmark is not healthcare efficiency or years caused by policy. GDP is not health spending or household resources. Geography, mortality estimation, population composition, inequality and small-economy effects are not controlled. Band sensitivity is not a confidence interval. A sign-stable label only means the sign agrees across all three adequately populated peer bands.",
      "records": 197,
      "url": "https://www.pluraterra.com/models/longevity-lift/",
      "csv": "https://www.pluraterra.com/data/insights/2026-11-02/longevity-lift.csv"
    },
    {
      "id": "essentials-floor",
      "name": "Essentials Floor",
      "definition": "Take the minimum of the four national population access percentages. Also report their arithmetic mean and the mean-minus-floor gap. If the four shares describe compatible populations, joint all-four access is bounded below by max(0, sum(shares) \u2212 300) and above by the minimum share.",
      "unit": "Percent of population",
      "period": "2023",
      "formula": "Floor = min(water, sanitation, electricity, clean cooking)",
      "limitations": "The floor is a marginal service share, not observed joint access. Joint bounds are conditional on compatible definitions, populations and endpoints; source estimates from different reporting systems may not align perfectly. No independence assumption is imposed. Access does not establish affordability, reliability or safe management.",
      "records": 170,
      "url": "https://www.pluraterra.com/models/essentials-floor/",
      "csv": "https://www.pluraterra.com/data/insights/2026-11-02/essentials-floor.csv"
    },
    {
      "id": "rank-drift",
      "name": "Rank Drift",
      "definition": "Use the fixed 170-economy cohort and five domain percentiles. Evaluate all 381 weight combinations on a five-percentage-point grid, each domain between 10% and 30%, weights summing to 100%. Rank Drift is the difference between the worst and best ranks observed on that grid.",
      "unit": "Rank places",
      "period": "2023 inputs",
      "formula": "Worst tested rank \u2212 best tested rank",
      "limitations": "The grid span is not an exact bound over continuous weights, not a confidence interval, and not an estimate of how people choose weights. Domain definitions, input data, cohort and normalization are held fixed. The grid excludes our separate environmental preset with its 35% air-quality weight.",
      "records": 170,
      "url": "https://www.pluraterra.com/models/rank-drift/",
      "csv": "https://www.pluraterra.com/data/insights/2026-11-02/rank-drift.csv"
    },
    {
      "id": "lived-gap",
      "name": "Lived Gap",
      "definition": "Restrict both orderings to the same 132 economies with a 2023 index score and a captured life-evaluation estimate ending in 2023. Keep the original five-domain scores; rerank them within this intersection. Rank the Cantril-ladder means for the same economies. Positive values mean a better ordinal position for life evaluation than for the index.",
      "unit": "Rank places in the common 132-economy cohort",
      "period": "2023 index / 2021\u20132023 survey",
      "formula": "Index rank in common cohort \u2212 life-evaluation rank in common cohort",
      "limitations": "Life evaluation is a 2021\u20132023 pooled survey mean, not a 2023 annual observation or current mood. The index is a separate normative construction. Rank distances are ordinal and not proportional wellbeing differences. Cultural response patterns and sampling errors affect comparisons. Source confidence intervals for survey means are included, but no significance test on the rank gap is performed.",
      "records": 132,
      "url": "https://www.pluraterra.com/models/lived-gap/",
      "csv": "https://www.pluraterra.com/data/insights/2026-11-02/lived-gap.csv"
    }
  ]
}