Typed rows, filtered exports, and confidence labels.
Data infrastructure / open access
Public data catalog
Download the records behind the research, including market shares, concentration measures, official events, and source references. Coverage and missing values are documented for each dataset.
Source records move through market definitions, concentration calculations, confidence labels, and public data endpoints — 45 source records, 12 market profiles, 235809 record rows plus a 1 row summary endpoint across 62 API endpoints.
Record rows
235,809
Sources
45
Endpoints
62
Aug 15, 2026
Latest source review
62
Dataset families
4
Source types
Use the observatory data directly.
Public-interest exploration needs the underlying data to be inspectable. These JSON and CSV endpoints expose the same public records that power profiles, rankings, reports, and the evidence ledger.
Industry concentration change routes to 789 rows with JSON, CSV, notebook, and citation reuse.
All public rows are available for audit, download, or reuse.
/api/public/industry-history62
Datasets
Aug 2026
Freshness
Selected dataset
Industry concentration change
Strict, disclosure-aware 2017 and 2022 Economic Census NAICS matches with concentration and scale changes, exact HHI-band transitions, and broad-sector composition shares for level-2 scale queries.
Endpoint rows
789
Scope
All detailed industries
dataset rows
789
endpoint rows
789
industry rows
789
source
all
report
all
fields
28
Use the industry-history query grammar for exact two-vintage rows.
Industry concentration change declares source custody in its endpoint contract.
Industry concentration change has no shared market-report parameter.
Open data needs public interpretation.
The API is a starting point, not a legal conclusion. Pair downloads with methodology notes, source records, and the data-gaps report when citing market concentration.