Public competition desk

U.S. competition observatory

A one-page view of concentration across markets, where the evidence is missing, and which firms are connected. Use the underlying sources to investigate questions, not to infer a legal violation from a score.

1 markets45 sources1 HHI gaps

Observatory indexChoose the evidence universe

4 public domains

Research desk

Map concentration to public action

Position markets by HHI, sector, evidence depth, and the public-action questions they raise.

1in view1filters1sources

Refine market sliceSector, geography, concentration, vintage, status, and confidence1 active1 in view

Market power decision map

Which markets need public action first?

HHI sets position; sectors set rows; sourced years set size; status marks action priority. Select a market to open its packet.

1Markets1Sectors1Queue

Map lens

All signals lens: 1/1 visible

Domestic airlines stays in this analytical layer; the map keeps its route, source packet, and public ask attached.

SelectedDomestic airlinesin scope, rank #1Visible1/1 visibleAll signalsMuted0 mutedoutside layer

Open selected handoff1 links, 1 action signals

Question answeredWhich markets are in the current observatory slice?Layer answer1 markets, 1 sector memberships, 1 action signalsNext actionPick a row, then open the scoped packet.

Nodes 1Memberships 1Action 1

Node sizeSourced HHI anchor years (0-5)Node colorMarket sectorStatus dotConcern or data gapMuted nodesOutside active layerSector spokeObserved market membershipRouteSelected evidence to public ask

Public policy agenda

1 actionable · 1 market need review, monitoring, or disclosure before the public can call them fair.

Route dossier

Disclosure gap

Public ask: Publish firm-level shares before scoring the market.

Market definition

Transportation

United States

Evidence strength

1 source

high confidence

Public posture

Incomplete

HHI withheld

Concern intensity

58%

source-backed
screen

Intensity is derived from HHI when available; disclosure gaps are held in the action queue until firm-level shares are public.

Analysis canvas

All signals · 1 markets across 1 sectors · farther right means higher HHI · selected market: Domestic airlines

Position HHISize HHI yearsColor sectorDot concern

No ownership, control, supply, or conduct claimOpen packet

ClaimDisclosure gapHHI pending; 17.8% top firm Evidence1 sourceIncomplete / high confidence Public askDisclosure gapPublish firm-level shares before scoring the market.Reuse packetProfile + APIsame market row, sources, JSON, CSV, comparison, and notebook route

Selected market route

Domestic airlines: Disclosure gap

Publish firm-level shares before scoring the market.

Layer rank#1of 1 all signals rowsHHI screenPendingFirm-level shares neededEvidence1 sourceIncomplete / high confidencePublic actionDiscloseFirm-share disclosure route

1. Transportation2. Domestic airlines3. Disclosure

HHI position

All signals

1 ranked markets

Ordered by public-action priority, then concentration. Tap a band to carry that market into the evidence packet.

Layer data table

All signals rows sorted by action priority, HHI, and source coverage.

1 shown

Market	HHI	Evidence	Public route
	PendingTop firm 17.8%	1 sourceIncomplete	Disclosure gap

Selected market

Domestic airlines

Transportation / United States / 2026

Disclosure gap

Pending

HHI

17.8%

Top firm

69.0%

CR4

Sources

Open profile

Research handoffDomestic airlines research handoff3 route steps · citation and notebook snippets

Domestic airlines routes from Transportation to disclosure gap with 1 source and HHI gap.

ClaimDisclosure gapHHI withheld until firm-level shares are public Evidence1 sourceIncomplete / high confidence AskDisclosure gapPublish firm-level shares before scoring the market.

JSON packet Data console Action ask

JSON CSV

Selected network packet ready for citation, API reuse, and notebook seeding.

Reusable evidence packet7 handoff routesProfile, sources, JSON, CSV, comparison, and action paths

Move this selected node across the observatory: full profile, source rows, machine-readable data, comparison lens, and public-action route stay attached to the same market.

Profilefull market dossier Source rows1 linked source Market JSONmachine-readable row Data consolescoped API workbench Action briefturn signal into ask CSV rowspreadsheet row Comparedata-gap lens

Public action queue1 priority routeHighest concern markets in this slice

Sector clusters1 sectorJump to a comparable market family

TransportationHHI pending1

Public interest triage

Where government should look next

Concentrated markets can turn everyday essentials into private chokepoints. This queue converts concentration screens into public action: publish missing data, investigate roll-ups, and test remedies.

Queue order uses the review category, latest sourced HHI, and visible trigger count. It does not estimate consumer harm or establish legal liability.

Immediate

Near-term

Data gaps

Agency-ready

Open advocacy agenda Audit sources

#1Evidence buildTop firm 17.8%
Domestic airlines
Transportation · United States · high confidence · incomplete
2
exact flags
Review basis
69.0% CR4 (>= 60%)Public data incomplete
Public action
Publish firm-level shares, ownership/control links, and market-definition notes before public agencies rely on private estimates.
Evidence needed
Firm-level shares and local ownership/control data