{
  "title": "Brunch Price Index, October 2026 Baseline",
  "publishedAt": "2026-10-25",
  "dataStart": "2026-10-12",
  "dataEnd": "2026-10-22",
  "methodVersion": "1.0.0",
  "population": "A purposive selection of previously researched restaurant branches across five priority city regions, including nearby suburbs explicitly identified by address.",
  "unit": "One preselected, named, individually plated breakfast/brunch main per exact branch. This is not a restaurant menu average and not the cheapest dish.",
  "selection": "Reuse the food examples already chosen for consumer decision guides; no automatic lowest-price selection. Exclude shared/small plates, partial portions, ordering-only prices and explicitly older printed menus.",
  "calculation": "For each city region, sort included food-only prices and take the middle value; for an even sample take the mean of the two middle values. Report the range and exact branch count. Every branch has equal weight.",
  "noncomparability": "Dishes, portion sizes, accompaniments, neighborhoods, service days and venue formats differ. City samples are unequal and non-random. Do not rank city affordability from this release.",
  "charges": "Published menu food prices exclude drinks, taxes, gratuities and other charges unless explicitly stated. Charge conditions remain beside each observation; they are not normalized into the median.",
  "timeSeries": "This is the first observation wave. No inflation rate, price change, trend direction or numeric base-100 series is claimed. Repeat the same exact branch and dish before measuring a later change.",
  "unknowns": "Missing prices remain missing; a zero price is never imputed. A source collection date is not the restaurant menu publication date or an assurance of today’s availability.",
  "geography": "City labels describe editorial regions. Each exact address and neighborhood is retained; LA includes separate municipalities, and Miami includes Hollywood and Miami Lakes.",
  "rights": "Publish factual observations and original analysis; link to the official menus rather than republishing complete menu pages or photographs.",
  "corrections": "Use /contact/ with the observation ID and official source. Retain superseded records and state an actual correction date.",
  "maintenance": "Review source availability before a new release. Recheck volatile charges and menu changes; collect repeat observations with a new date. Do not silently refresh the original collection timestamp."
}