Focused empirical briefs connecting one bounded competition question to reproducible public evidence, source custody, and an inspectable research agenda.
AR-RB / permanent publication series
Research brief
Competition Research Briefs
Focused empirical briefs connecting one bounded competition question to reproducible public evidence, source custody, and an inspectable research agenda. Cell = one permanent editionFill follows evidence-unit count within this series
- Current editions
- 7
- 1 publication year
- Research themes
- 6
- declared memberships
- Geographies
- 1
- 1 research scope
- Source links
- 14
- reviewed through Jul 21, 2026
Series contract. Each brief preserves the source-defined unit and comparison frame. Descriptive concentration, entry, geography, or merger-review evidence is not treated as a causal or legal conclusion.
Evidence standardInstitutional mandate
What this collection is for.
Each brief preserves the source-defined unit and comparison frame. Descriptive concentration, entry, geography, or merger-review evidence is not treated as a causal or legal conclusion.
- Primary audience
- Policy researchers, oversight staff, journalists, and advocates
- Output
- Research brief
- First edition
- Jul 19, 2026
- Latest edition
- Jul 24, 2026
Coverage profile
Themes, scopes, and evidence volume
Declared themes
- Market structure571% of series editions
- Digital platforms114% of series editions
- Industry structure229% of series editions
- Places and local markets343% of series editions
- Business dynamism114% of series editions
- Merger review114% of series editions
Research scopes
- U.S. domestic research7100% of editions
- Evidence units
- 14
- Source links
- 14
- Current editions
- 7
- Source clock
- Jul 21, 2026
Edition register
7 citable editions
- AR-RB-2026-01Version 1.0
Research brief / United States
Beef Meatpacking Buyer Power
Explains what the national beef-packer CR4 reveals, why HHI remains withheld, and how the related Census industry screen should be used without redefining a cattle procurement market.- Market structure
- Industry structure
- Published
- Jul 19, 2026
- Sources reviewed
- Jul 19, 2026
- Evidence
- 3 cited sources
- Source links
- 3
- AR-RB-2026-02Version 1.0
Research brief / United States
Five Digital Gateways
Five system histories, exact share rows, official product-attribution paths, and a public research agenda with every denominator kept separate.- Market structure
- Digital platforms
- Published
- Jul 20, 2026
- Sources reviewed
- Jul 20, 2026
- Evidence
- 5 cited sources
- Source links
- 5
- AR-RB-2026-03Version 1.0
Research brief / United States
State Banking Structure, 2015-2025
Shows how a nearly unchanged national HHI can coexist with large state-level movements, classification turnover, and declining branch and organization counts.- Market structure
- Places and local markets
- Published
- Jul 20, 2026
- Sources reviewed
- Jul 19, 2026
- Evidence
- 1 cited source
- Source links
- 1
- AR-RB-2026-04Version 1.0
Research brief / United States
Business Dynamism Across U.S. Sectors, 1978-2023
Shows the long decline in national business entry, the range of 19 broad-sector paths, and what a guarded 17-sector structure comparison can and cannot establish.- Industry structure
- Business dynamism
- Published
- Jul 20, 2026
- Sources reviewed
- Jul 19, 2026
- Evidence
- 2 cited sources
- Source links
- 2
- AR-RB-2026-05Version 1.0
Research brief / United States
The Federal Merger Review Pipeline, 2016-2025
A ten-year map of federal merger notifications and review procedure with exact monthly and transaction-size evidence, source custody, and permanent outcome guardrails.- Merger review
- Published
- Jul 20, 2026
- Sources reviewed
- Jul 18, 2026
- Evidence
- 1 cited source
- Source links
- 1
- AR-RB-2026-06Version 1.0
Research brief / United States
Fixed Broadband Concentration Across Geographic Scales, 2020-2024
A four-scale FCC concentration history showing why a rising national HHI and falling subnational medians must be read together without converting them into one market.- Market structure
- Places and local markets
- Published
- Jul 24, 2026
- Sources reviewed
- Jul 21, 2026
- Evidence
- 1 cited source
- Source links
- 1
- AR-RB-2026-07Version 1.0
Research brief / United States
State Individual Insurance Concentration, 2024
A 51-jurisdiction KFF concentration cross-section showing where high HHI, leading-insurer share, and thin rival depth coincide, with every result bounded to the 2024 ACA individual market.- Market structure
- Places and local markets
- Published
- Jul 24, 2026
- Sources reviewed
- Jun 23, 2026
- Evidence
- 1 cited source
- Source links
- 1
Series relationship register
Exact overlap with the other five collections
| Series | Shared themes | Shared scope | Same format | Route |
|---|---|---|---|---|
| Competition Insights | Markets / Digital / Industries / Places / Dynamism / Mergers | us-domestic | No | Compare |
| State of Competition | Markets / Industries / Places / Mergers | us-domestic | Yes | Compare |
| Methods and Measures | Markets | us-domestic | Yes | Compare |
| Public Data Notes | Places | us-domestic | Yes | Compare |
| International Competition Policy Evidence Briefs | 0 / no declared overlap | 0 / separate scope | No | Compare |
Theme overlap describes exact shared taxonomy memberships only. It does not establish shared findings, methods, quality, or policy implications.
Collection citation
Open edition citations Antitrust Radar. (2026). Competition Research Briefs [Publication series]. Antitrust Radar.