{
  "schemaVersion": 1,
  "slug": "taiwan-k-shaped-card-spending",
  "publicArtifacts": [
    "summary.json",
    "expected_results.json",
    "reproduction-manifest.json",
    "chart_series.json",
    "nccc_income_industry_monthly.csv",
    "real_card_spending_indices.csv",
    "benchmark_monthly.csv",
    "wid_wealth_distribution_appendix.csv",
    "data_quality_summary.csv",
    "benchmark.png",
    "nominal_spending.png",
    "real_spending.png",
    "k_gap.png",
    "income_bins_8line.png",
    "transactions_ticket_diagnostic.png",
    "wid_wealth_share_appendix.png"
  ],
  "rawCachePolicy": "Raw API/ZIP downloads are cached under .cache and not published.",
  "notebook": "/notebooks/taiwan-k-shaped-card-spending.ipynb",
  "analysisWindow": {
    "startMonth": "2018-01",
    "latestCommonMonth": "2026-03"
  },
  "sourceRequirements": [
    "NCCC OpenAPI C03 income-group credit-card spending CSV endpoints",
    "DGBAS A030104015 income-level CPI JSON endpoint",
    "DGBAS A050107020 retail and food-service sales JSON endpoint",
    "WID Taiwan bulk dataset ZIP for annual wealth distribution appendix"
  ]
}