{
  "id": "methodology.cost_of_living.us.v1",
  "label": "US cost-of-living index",
  "version": "1",
  "summary": "State cost-of-living from BEA Regional Price Parities (all items, US = 100).",
  "steps": [
    "Pull all-items Regional Price Parities by state from BEA",
    "Express each state relative to the US average (= 100)",
    "Attach the BEA reference year; refresh annually"
  ],
  "assumptions": [
    "All-items RPP (apparel, food, housing, medical, transport, etc.)"
  ],
  "limitations": [
    "v0 snapshot covers 7 states; full 50-state table via the ingestion pipeline"
  ],
  "sources": [
    "source.us_bea.rpp"
  ],
  "formulas": [],
  "updated": "2026-06-04"
}