Evidence ledger

Every public record the site draws on, with what it covers, when it was measured, when we retrieved it, and its known limits. Check these before reusing a finding.

Reusable source packet

Start from Federal Communications Commission

One record, ready for JSON, CSV, data-console filters, market context, and action.

Source JSONcitation and coverage Source CSVspreadsheet-ready Data consolefilter source rows Lead marketWireless service Action briefmarket-scoped ask

1 market link / 2 report citations

Source dossier Open packet in register

Compare sources Read standard View cited reports Open JSON

Source-to-public route

Records stay attached to every claim.

JSON

Records45Markets12Data rows235809

public sources

citation records

linked markets

profile routes

URL records

recorded public links

Aug 2026

latest access

Aug 15, 2026

Claim custody

How evidence becomes public action

Select a stage to inspect its count, publication rule, and claim boundary.

Evidence standard

01Collect45 records 02Qualify194 links 03Publish11 briefings 04Mobilize12 markets

Collect / current scope45 records

45 of 45 source records include a recorded public URL.

What this measures: Public source records with publisher, access date, citation, and reusable endpoint metadata.
Publication rule: Keep the original public record inspectable and preserve access dates and licensing notes.
Claim boundary: A public URL and source record establish traceability, not that the underlying measure supports a market-power claim.

Inspect collect route

Source-to-public route

Evidence remains attached as it moves.

Register45 records JSONpublic source rows Consolequery and export

Selected packetFederal Communications Commission1 market links / 2 report citations

45 records

Profiles

12 markets

Reports

11 briefings

Open rows

235809 rows

Live evidence packet

Datasets

Agency reports

Inspect summary endpoint

235809

Record rows

194

Confidence links

Source types

Evidence workspace

Follow the record from source to public use.

Register45 records / 45 URLs

Public source register

Search and filter the public records used by market profiles and reports.

Methodology

Public URL recorded

Showing 45 source records, 12 linked markets, 37 report citations, and 100% with recorded URLs.

Filtered audit

The register view recalculates source mix, public links, market coverage, and report citations as filters change.

records

markets

citations

100%

URLs

Standard of proof

Use with visible qualifiers

Advocacy evidence should be inspectable, market-linked, cited, and confidence-labeled before it asks the public to act.

69%

1/4 ready

URL recorded45/45 linkedEvery record includes a public URL; reachability and reuse terms remain separate checks.

Market trace28/45 linked12 markets connected to the filtered evidence.

Report reuse37 citations21 records already appear in public briefings.

Confidence review13/45 reviewed32 records still need stronger confidence notes.

Source mix in view

All source types

13 reviewed

agency report21

public dataset21

academic paper2

industry report1

API route

GET /api/public/sources

Selected public recordAre US Industries Becoming More Concentrated?Review of Finance / unlinkedEvidence dossier

Selected public record

Are US Industries Becoming More Concentrated?

Review of Finance / academic paper

unlinked

Selected-source route map

A single public record should carry readers from citation to market context, reusable data, and market-scoped action.

3/5 route checks ready

1Record

academic paper

Review of Finance

2Markets

0 links

No market link

3Reports

0 citations

No cited report

4API

JSON + CSV

Reusable rows

5Action

General queue

Advocacy center

Public URL

recorded

Accessed

Aug 5, 2026

License

Publisher-hosted academic article

Citation trail

BibTeX RIS

Grullon, Gustavo; Larkin, Yelena; and Michaely, Roni / 2019 / glm-industry-concentration-2019

Grullon, Gustavo; Larkin, Yelena; and Michaely, Roni. Are US Industries Becoming More Concentrated? Review of Finance 23(4), 2019, 697-743. Available at https://academic.oup.com/rof/article/23/4/697/5477414?login=false. Accessed Aug 5, 2026. Antitrust Radar source record glm-industry-concentration-2019: https://antitrustradar.org/sources/glm-industry-concentration-2019

Peer-reviewed study of changes in concentration across U.S. industries since the late 1990s.

Accessed

Aug 5, 2026

Markets linked

Report citations

Market coverage

Report-only source

Report usage

No report citation yet

Evidence route

1. RecordPublic source selected

2. Coverage0 market links

3. Use0 report citations

Source evidence packet

Reuse this public record as a filtered evidence packet across data, reports, markets, and public action.

Source JSONcitation and coverage

Source CSVspreadsheet-ready

ObservationsHHI rows using source

Participantsfirm-share rows

Cited reportsreport metadata

Data consolefilter source rows

Lead marketmarket profiles

Action briefpublic action center

Methodologysource standards

Open source dossier Open public source Open source API

Source	Publisher	Type	Coverage	Accessed	Confidence	Open
Are US Industries Becoming More Concentrated? Grullon, Gustavo; Larkin, Yelena; and Michaely, Roni. Are US Industries Becoming More Concentrated? Review of Finance 23(4), 2019, 697-743. Open profile	Review of Finance	academic paper	Report-only source	Aug 5, 2026	unlinked	Open source
2023 Merger Guidelines U.S. Department of Justice and Federal Trade Commission, 2023 Merger Guidelines, released December 18 2023. Open profile	U.S. Department of Justice and Federal Trade Commission	agency report	Report-only source	Aug 5, 2026	unlinked	Open source
2024 Communications Marketplace Report Federal Communications Commission, 2024 Communications Marketplace Report, FCC 24-136, released December 31 2024. Open profile	Federal Communications Commission	agency report	Wireless service 2 report citations	May 16, 2026	high-linked	Open source
Internet Access Services: Status as of December 31 2024 Federal Communications Commission, Internet Access Services: Status as of December 31, 2024, Figure 5, published 2026. Open profile	Federal Communications Commission	agency report	Fixed broadband 1 report citation	Jul 21, 2026	high-linked	Open source
TranStats airline domestic market share March 2025-February 2026 Bureau of Transportation Statistics TranStats, Airline Domestic Market Share, March 2025-February 2026. Open profile	Bureau of Transportation Statistics	public dataset	Domestic airlines 2 report citations	May 16, 2026	high-linked	Open source
America's Rental Housing 2026 Harvard Joint Center for Housing Studies, America's Rental Housing 2026, released March 2026. Open profile	Harvard Joint Center for Housing Studies	academic paper	Rental housing 2 report citations	Jun 21, 2026	medium-linked	Open source
Housing Supply: Still Undersupplied by Millions of Units Freddie Mac, Housing Supply: Still Undersupplied by Millions of Units, November 2024. Open profile	Freddie Mac	industry report	Rental housing 1 report citation	Jun 21, 2026	unlinked	Open source
Institutional Investor Ownership of Single-Family Rental Homes Government Accountability Office, Rental Housing: Institutional Investor Ownership of Single-Family Rental Homes, GAO-26-108675, March 2026. Open profile	Government Accountability Office	agency report	Rental housing 1 report citation	Jun 21, 2026	high-linked	Open source