Antitrust Radar

Long-form reports and research briefs

Our published research on market concentration and competition policy, free to read and reuse. Each report states its question, what the data can and cannot show, and where every number comes from.

Briefings
11
open publications
Series
4
versioned registers
Markets
12
linked profiles
Immediate
2
action memos

11 public briefings across market structure, enforcement, and competition policy.

Housing ownership2 briefings on local-market data gapsHHI method9 briefings explain concentration thresholdsDigital gateways3 briefings route platform evidence

Report evidence desk

Briefings ranked for public use.

Evidence depth, market scope, publication readiness, and policy priority in one accountable record.

Open reports
11
Source links
37
Linked markets
12
Immediate memos
2

Research comparison

11 briefings
Showing 6 of 11 briefings

Flagship research

AR-SC-2026-01 / Current edition

The U.S. Competition Landscape

State of Competition 2026: five evidence systems, no single score

Central finding

Public evidence does not support a single national competition score.

A source-backed state-of-competition briefing across markets, industries, state systems, local banking screens, mergers, and enforcement, with every system kept in its own analytical universe.

Sources
14
Markets
8
Chapters
7
National evidence atlasDefined markets / industry structure / geography / mergers / enforcement

Current editions

Latest research briefings

Open shelf
  1. 01AR-RB-2026-07 / Research briefState Individual Insurance Concentration, 20241 source / Jul 24, 2026
  2. 02AR-RB-2026-06 / Research briefFixed Broadband Concentration Across Geographic Scales, 2020-20241 source / Jul 24, 2026
  3. 03AR-RB-2026-05 / Research briefThe Federal Merger Review Pipeline, 2016-20251 source / Jul 20, 2026
  4. 04AR-RB-2026-04 / Research briefBusiness Dynamism Across U.S. Sectors, 1978-20232 sources / Jul 20, 2026

Research desk

Evidence first

Search briefings, inspect their source basis, and follow the route from public data to market profiles and policy asks.

Methods
Research cadence

Jul 2026

Latest briefing cycle in the public research library.

3

visible

5

sources

Latest briefings
JSON feed

Type

Sector

Showing 3 report briefings, 10 linked markets, 22 source links, and 0 urgent memos. Active filters: Search: "digital".

3

reports

10

linked markets

22

source links

0

urgent memos

Research briefNear-term policy memo

Five Digital Gateways

A source-backed research brief tracing search, browser, mobile operating-system, social-referral, and AI-assistant concentration without collapsing them into one platform market or ecosystem score.

Open report

Publication readiness

Publication-ready packet

Checks whether this briefing can be cited, audited, exported, and routed into public action.

100%

7/7 ready

Citable releasereadyPublic date Jul 20, 2026
Public source basisready5 source links attached
Market scopeready5 linked markets
Evidence needs namedready5 next-step needs visible
Reusable data exportsreadyJSON, CSV, and source-ledger routes exposed
Public action routeready3 asks routed to advocacy
Method visiblereadyMethodology handoff included
View audit trail7/7 checks
Citable releasereadyPublic date Jul 20, 2026
Public source basisready5 source links attached
Market scopeready5 linked markets
Evidence needs namedready5 next-step needs visible
Reusable data exportsreadyJSON, CSV, and source-ledger routes exposed
Public action routeready3 asks routed to advocacy
Method visiblereadyMethodology handoff included

Policy audience

FTC, DOJ, FCC, state AGs, and technology policy staff

Evidence needed next

Revenue and monetization measuresDefault-placement and distribution contractsInstalled-base and unique-user measuresSwitching and multihoming evidence

Selected briefing

Jul 2026

date

Near-term

priority

5

sources

5

markets

Search engines · Browsers · Mobile operating systems · Social referrals · AI assistants

Policy thesis

Digital gateway concentration should be investigated across separately bounded access systems, with public usage proxies connected to stronger distribution, revenue, switching, interoperability, and remedy-outcome evidence.

Public asks

Publish a denominator-specific gateway ledger

Report search, browser, mobile operating-system, social-referral, and AI-assistant evidence with explicit denominators, category rules, vintages, and downloadable histories instead of one platform score.

Expose distribution and default pathways

Require public records on preinstallation, default placement, referral contracts, app-store access, interoperability, multihoming, and switching friction across gateway layers.

Test remedies with outcome measures

Track whether default, interoperability, portability, access, and distribution remedies change user choice, entry, quality, prices, publisher dependence, or switching over time.

Source basis

Five StatCounter U.S. public usage-share sources: April 2023-April 2026 search, browser, mobile operating-system, and social-referral anchors, plus the May 2026 AI-assistant baseline. Official product-attribution records remain a separate evidence layer.

Search enginesBrowsersMobile operating systemsSocial referralsAI assistants

Reader packet

Citable line

Five Digital Gateways (2026-07-20) links 5 sources to 5 markets (Search engines, Browsers, Mobile operating systems, Social referrals, AI assistants) and carries a near-term public-policy priority.

Briefing packetcite, audit, actReport JSON5 source refsReport CSVspreadsheet-readySource ledgercited records onlyData consolefilterable report rowsLead marketSearch enginesAction briefmarket-scoped askMethodologylimits and caveats
Research export

Notebook starter

const reportPacket = await fetch("/api/public/reports?report=digital-gateways-brief").then((response) => response.json()); const leadMarket = await fetch("/api/public/markets?market=us-search-engine-usage").then((response) => response.json()); const sourceTrail = await fetch("/api/public/sources?market=us-search-engine-usage").then((response) => response.json()); console.table(reportPacket.rows); console.table(leadMarket.rows); console.table(sourceTrail.rows);