Antitrust Radar
Policy AgendaAR-PA-033 / reviewed Aug 13, 2026 JSON

Near-term / Public data infrastructure

Build an auditable event history

Publish entry, exit, buildout, subsidy, technology, ownership, merger, and reporting-change records that can test why geographic concentration paths moved without inferring cause from HHI alone.
Source records1report custody
Linked markets1analytical context
Research themes2publication taxonomy
Evidence needs5future verification inputs
Recommendation evidence chain

The source boundary stays visible from analysis to proposed action.

02Evidence custody1 sources / 1 marketsLinked context, not independent endorsement
03Normative recommendationAR-PA-033Public data infrastructure
04Implementation evidenceNot assessedNo adoption or impact inference
This agenda registers normative recommendations published by Antitrust Radar. A recommendation's presence, priority, source links, or evidence needs do not show government consideration, adoption, funding, implementation, enforcement use, effectiveness, or impact. Report sources support the underlying analysis and do not independently endorse the recommendation.
Source report position

Fixed Broadband Concentration Across Geographic Scales, 2020-2024

Fixed-broadband oversight should preserve national and subnational concentration summaries as distinct signals, then connect them to provider-level local structure, distributional evidence, market events, and consumer outcomes before assigning cause or defining a legal market.
Intended audience
FCC, FTC, DOJ, Congress, state attorneys general, broadband offices, and competition researchers
Policy priority
Near-term
Instrument
Public data infrastructure
Publication
AR-RB-2026-06 / version 1.0
Canonical citation
Antitrust Radar Research Team. (2026, July 24). Fixed Broadband Concentration Across Geographic Scales, 2020-2024: National HHI rose while median state, county, and census-tract concentration fell. Competition Research Briefs, AR-RB-2026-06 (Version 1.0). Antitrust Radar. https://antitrustradar.org/reports/fixed-broadband-geographic-concentration-2020-2024
Evidence still needed

Inputs required to investigate the recommendation and its effects.

  1. 01Area-level provider identities, connection shares, and common control
  2. 02Geographic HHI quantiles, tails, exclusions, and revision histories
  3. 03Price, speed, reliability, outage, adoption, quality, and switching outcomes
  4. 04Entry, exit, buildout, subsidy, technology, ownership, and merger events
  5. 05Stable geographic and provider identifiers across reporting vintages
These are research requirements, not evidence that an agency has opened, adopted, or completed the work.
Related policy architecture