{
  "catalog_id": "datasets_004_ai_labor_displacement",
  "investigation": "ai-labor-displacement",
  "title": "Every Technology Revolution Concentrates Wealth. Except When It Doesn't.",
  "url": "https://claudereviews.com/data/ai-labor-displacement/",
  "compiled": "2026-04-03",
  "datasets": [
    {
      "id": "sector_history",
      "file": "chart_01_sector_history.csv",
      "url": "https://claudereviews.com/data/raw/chart_01_sector_history.csv",
      "description": "US employment share by major sector (agriculture, manufacturing, services), 1800–2026. Foundation chart for all three lenses.",
      "rows": 25,
      "columns": ["year", "agriculture_pct", "manufacturing_pct", "services_pct"],
      "sources": ["Census Bureau Historical Statistics", "BLS CES 100-Year Series (2016)", "USDA ERS Farm Labor", "Lebergott (1966)", "BLS Employment Situation Table B-1 (Feb/Mar 2026)"],
      "used_in_lenses": ["pessimist"],
      "used_in_charts": ["Chart 1 — 226 Years Stacked Area"]
    },
    {
      "id": "wealth_top1",
      "file": "chart_02a_wealth_top1.csv",
      "url": "https://claudereviews.com/data/raw/chart_02a_wealth_top1.csv",
      "description": "Top 1% share of total household wealth, 1900–2025. Shows the concentration U-shape: 45% (1913) → 22% (1978) → 31% (2025).",
      "rows": 16,
      "columns": ["year", "top1_wealth_pct", "source"],
      "sources": ["OECD historical wealth distribution (1900–1989)", "Federal Reserve Distributional Financial Accounts (1989–2025)", "CBO 'Trends in Distribution of Family Wealth' (2022)"],
      "used_in_lenses": ["pessimist"],
      "used_in_charts": ["Chart 2a — Top 1% Wealth Share"]
    },
    {
      "id": "market_concentration",
      "file": "chart_02b_market_concentration.csv",
      "url": "https://claudereviews.com/data/raw/chart_02b_market_concentration.csv",
      "description": "Top 10 stocks as percentage of S&P 500 market capitalization, 1900–2025. Rate of increase 2013–2025 is steepest in 200 years.",
      "rows": 12,
      "columns": ["year", "top10_sp500_pct", "source"],
      "sources": ["Morgan Stanley / Counterpoint Global 'Stock Market Concentration' (2024)", "Finaeon 200-Year Market Concentration dataset"],
      "used_in_lenses": ["pessimist"],
      "used_in_charts": ["Chart 2b — S&P 500 Top 10 Concentration"]
    },
    {
      "id": "info_sector",
      "file": "chart_03_info_sector.csv",
      "url": "https://claudereviews.com/data/raw/chart_03_info_sector.csv",
      "description": "Information sector employment in thousands, 1990–2026. Peaked at 3,629K in 2001, still 23% below peak in 2026.",
      "rows": 20,
      "columns": ["year", "employment_thousands", "note"],
      "sources": ["BLS CES series USINFO", "BLS Employment Situation Table B-1", "Lightcast/EMSI (2013)"],
      "used_in_lenses": ["pessimist"],
      "used_in_charts": ["Chart 3 — Information Sector Employment"]
    },
    {
      "id": "canaries",
      "file": "chart_04_canaries.csv",
      "url": "https://claudereviews.com/data/raw/chart_04_canaries.csv",
      "description": "Employment change by age group and occupation, Oct 2022–Sep 2025. Shows AI-specific age gradient: young workers decline, senior workers grow.",
      "rows": 6,
      "columns": ["age_group", "age_label", "software_dev_pct", "customer_service_pct", "nursing_health_pct"],
      "sources": ["Brynjolfsson, Chandar & Chen (2025) 'Canaries in the Coal Mine?', Stanford Digital Economy Lab", "ADP payroll microdata"],
      "used_in_lenses": ["pessimist", "optimist"],
      "used_in_charts": ["Chart 4 — Canaries Age Gradient"]
    },
    {
      "id": "solopreneur",
      "file": "chart_07_solopreneur.csv",
      "url": "https://claudereviews.com/data/raw/chart_07_solopreneur.csv",
      "description": "Solo-founded startups as percentage of all new startups, 2015–2025. Shows acceleration after ChatGPT launch: 23.7% (2019) → 36.3% (mid-2025).",
      "rows": 11,
      "columns": ["year", "solo_founded_pct", "source"],
      "sources": ["Carta Founder Ownership Reports 2025–2026", "Grey Journal solo founders analysis"],
      "used_in_lenses": ["optimist"],
      "used_in_charts": ["Chart 7 — Solopreneur Trend"]
    },
    {
      "id": "speed_comparison",
      "file": "chart_08_speed_comparison.csv",
      "url": "https://claudereviews.com/data/raw/chart_08_speed_comparison.csv",
      "description": "Disruption speed comparison across four technology eras: agriculture, manufacturing, internet, generative AI. AI's duration is dramatically shorter while hitting a wider workforce share.",
      "rows": 4,
      "columns": ["disruption", "start_year", "duration_years", "workforce_pct_affected", "years_to_impact", "adaptation_timeline", "tech_doubling_years"],
      "sources": ["BLS historical employment data", "Brynjolfsson et al. (2025)", "ILO Working Paper 140 (2025)", "BLS CES 100-Year Series"],
      "used_in_lenses": ["realist"],
      "used_in_charts": ["Chart 8 — Speed Gradient", "Chart 10 — Speed vs. Adaptation Scatter"]
    }
  ]
}