Data sources and licences

Government and public datasets

• USDA National Agricultural Statistics Service (NASS) and the California Department of Food and Agriculture — Grape Crush Report (tonnes crushed and weighted average price per ton by district and variety), Grape Acreage Report. Public domain.
• U.S. Bureau of Labor Statistics via FRED — Producer Price Index for wineries (PCU312130312130), PPI for wine grapes (WPU011102283), average retail price of table wine (APU0000720311), CPI all items (CPIAUCSL), 3-month Treasury bill rate (TB3MS). Public domain; FRED terms of use.
• U.S. Census Bureau — monthly imports of wine (HS 2204) by country of origin, general customs value and quantity. Public domain.
• U.S. International Trade Commission — Harmonized Tariff Schedule chapter 22 duty lines via the HTS REST API. Public domain.
• Federal Register, USTR, CBP — tariff measures and effective dates, cited row by row on the tariff tracker.
• SAFER / FNSAFER (France) — annual vineyard land price reports by appellation. Reported figures cited by year.
• INAO, CIVC (Comité Champagne), CIVB, BIVB, Consorzi — appellation rules, permitted yields, planted area, grape prices where published.
• National statistical agencies and university extension services — vineyard establishment and operating cost studies (e.g. UC Davis / UC Cooperative Extension cost-and-return studies).

First-party producer information

Vineyard area, grape varieties, technical specifications, bottle production, harvest and winemaking details as published on producers’ own websites and technical sheets, rewritten in original language and cited. Extended prose is never copied.

Market prices

Release prices as reported by named publications (Wine Spectator, Decanter, The Drinks Business), linked on each vintage page, and the first US retail offer per vintage where Wine Spectator tabulated one (its average of leading US retailers). Auction results: individual lots from the public results pages of Christie’s, Hart Davis Hart and Sotheby’s, each linked to its lot page, with the price as the house published it (Christie’s and Sotheby’s: hammer price plus buyer’s premium; Hart Davis Hart: hammer price before premium), in the currency of the sale, never converted. Lots mixing several wines or vintages are left out. Not held: valuations, price indices, merchant asking-price feeds and anything from licensed databases (Liv-ex, Wine-Searcher); Corkonomics shows nothing in their place rather than a synthetic figure. No login walls or technical protections are bypassed.

Benchmarks

S&P 500 and gold from Financial Modeling Prep (delayed end-of-day); Treasury bills and CPI from FRED.

News

Headlines and publishers’ own summaries from public RSS feeds of named publications, linking out. Nothing is republished.

Series held

Every time series the site holds — official statistics and market benchmarks — with its source, how often it is published (M monthly, W weekly, D daily) and when it was last refreshed.

Pipeline status

The automated jobs that refresh the site — tariff lines, official statistics, benchmarks, news, statistics recomputation — with their last run, whether it succeeded and how many rows it touched.

Images

328 images from 2 sources, each with creator, source URL, licence and licence URL. See image licensing.