Antitrust Radar

Research observatory / publication desk

Competition Briefing Studio

Prepare a research brief from published changes and selected evidence. Every measure retains its period, unit, source population, and inference limits.

Selected signals
1maximum five
Evidence systems
1kept separate
Source records
2deduplicated
Source review
Jul 18, 2026latest selected record
Current packet lineageResearch memo
2Source records
1Observed changes
1Bounded packet
1Research questions
Defined markets0
Census industries1
Geographic systems0
Business dynamics0
Merger activity0
Selection preserves source custodyNo composite score
Observed anchorsLatest versus prior, with the interval visible.
Deterministic synthesisPublished interpretations and questions, not generated claims.
Reusable packetShare URL, Markdown, JSON, BibTeX, and RIS.

Signal set

Published comparisons

1/5
1 selected / 46 in view

Research memo / source-backed packet

Accommodation and food services: Median HHI briefing

Frame a reproducible research agenda while keeping metrics, periods, universes, and inference limits separate. This packet keeps 1 latest-to-prior observation across 1 evidence system separate and does not rank or combine them.
Signals
1
Domains
1
Sources
2
Observed span
2017-2022
01

Census industries / Median HHI

Accommodation and food services

-0.6
201714.9
5 years
202214.3

The 2022 median is lower than the 2017 median across the same published strict-match screen. Sector medians are orientation statistics, not sector HHI values or legal market findings.

Research questionWhich six-digit industries drive the sector shift, and where do product, geography, entry, conduct, price, quality, or enforcement records justify deeper market-level research?
Interpretation boundary

Every signal compares declared observed anchors inside the same series or cross-section. Missing years are not interpolated, intervals are not annualized, and market, industry, geographic, business-flow, and merger measures keep separate units, universes, period bases, and legal meanings. Antitrust Radar does not combine them into a composite competition score.

Packet access1 signals / 2 canonical sources / Jul 18, 2026

Publication standard

A briefing is a research handoff, not a finding of liability.

Every exported packet carries the observed comparison, source register, bounded interpretation, next research question, and the global no-composite-score rule.

  1. 01
    State what changed

    Report the exact prior and latest anchors with their period basis and interval.

  2. 02
    Keep systems separate

    Do not compare the magnitude of unlike HHI, share, business-flow, transaction, and review-rate changes.

  3. 03
    Open the investigation

    Route each signal into its underlying profile, explorer, source records, and research question.

Research handoffs

Continue in the underlying evidence system.

The studio packages current observations; profiles, explorers, reports, and public data remain the authoritative analytical surfaces.