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Cross-domain evidence graph

Observatory atlas

Follow documented connections between markets, firms, places, publications, and sources. A connection shows a recorded relationship, not that two measures describe the same market.

Live family topologyAll declared links

Current focusHow HHI Helps Explain M...19,193 records / 27 family pairs

All declared links topology centered on How HHI Helps Explain M...Line width represents declared relationship count. Line color identifies relationship layer. Circle size represents the number of canonical profiles in each family.Places to Indicators: 6,412 declared links. Measurement 6,412.Places to Sources: 3,378 declared links. Measurement 3,378.Places to Places: 3,204 declared links. Measurement 3,204.Industries to Sources: 1,954 declared links. Measurement 1,954.Industries to Industries: 1,849 declared links. Measurement 1,849.Industries to Indicators: 1,576 declared links. Measurement 1,576.Publications to Sources: 169 declared links. Research 169.Places to Publications: 114 declared links. Research 114.Topics to Publications: 97 declared links. Research 97.Topics to Questions: 58 declared links. Research 58.Markets to Products: 55 declared links. Measurement 55.Indicators to Sources: 50 declared links. Measurement 48, Research 2.Questions to Indicators: 46 declared links. Research 46.Markets to Publications: 33 declared links. Research 33.Records to Named entities: 31 declared links. Enforcement 31.Products to Operators: 28 declared links. Organization 28.Markets to Indicators: 21 declared links. Measurement 21.Markets to Sources: 20 declared links. Measurement 20.Markets to Records: 18 declared links. Enforcement 18.Industries to Places: 17 declared links. Measurement 17.Issues to Topics: 16 declared links. Research 16.Records to Sources: 14 declared links. Enforcement 14.Markets to Industries: 12 declared links. Measurement 12.Markets to Issues: 12 declared links. Research 12.Operators to Named entities: 4 declared links. Organization 4.Sources to Sources: 3 declared links. Measurement 3.Products to Named entities: 2 declared links. Organization 2.Markets12Markets: 12 canonical profiles, 171 links in All declared links, 171 links overall. Documented antitrust and screening definitionsProducts55Products: 55 canonical profiles, 85 links in All declared links, 85 links overall. Source-labeled market participantsOperators20Operators: 20 canonical profiles, 32 links in All declared links, 32 links overall. Official product attributionsIndustries1,866Industries: 1,866 canonical profiles, 5,408 links in All declared links, 5,408 links overall. Census hierarchy and screening contextIssues6Issues: 6 canonical profiles, 28 links in All declared links, 28 links overall. Editorial competition research programsTopics8Topics: 8 canonical profiles, 171 links in All declared links, 171 links overall. Institutional research subjects and exact evidence membershipsQuestions46Questions: 46 canonical profiles, 104 links in All declared links, 104 links overall. Public research questions anchored to exact signals and indicatorsPlaces3,270Places: 3,270 canonical profiles, 13,125 links in All declared links, 13,125 links overall. National context, bounded state and local screens, and international regulatory profilesIndicators30Indicators: 30 canonical profiles, 8,105 links in All declared links, 8,105 links overall. Canonical measurement dossiersRecords14Records: 14 canonical profiles, 63 links in All declared links, 63 links overall. Dated official enforcement recordsNamed entities21Named entities: 21 canonical profiles, 37 links in All declared links, 37 links overall. Organizations named in official recordsPublications85Publications: 85 canonical profiles, 413 links in All declared links, 413 links overall. Reports, data dispatches, and international evidence briefsSources45Sources: 45 canonical profiles, 5,588 links in All declared links, 5,588 links overall. Public evidence custody
All declared links compact topology centered on How HHI Helps Explain M...Tap a family or weighted route to inspect its declared neighborhood, then use the dossier action below to open the complete record. Circle size represents canonical profile count.Places to Indicators: 6,412 declared links. Measurement 6,412.Places to Sources: 3,378 declared links. Measurement 3,378.Places to Places: 3,204 declared links. Measurement 3,204.Industries to Sources: 1,954 declared links. Measurement 1,954.Industries to Industries: 1,849 declared links. Measurement 1,849.Industries to Indicators: 1,576 declared links. Measurement 1,576.Publications to Sources: 169 declared links. Research 169.Places to Publications: 114 declared links. Research 114.Topics to Publications: 97 declared links. Research 97.Topics to Questions: 58 declared links. Research 58.Markets to Products: 55 declared links. Measurement 55.Indicators to Sources: 50 declared links. Measurement 48, Research 2.Questions to Indicators: 46 declared links. Research 46.Markets to Publications: 33 declared links. Research 33.Records to Named entities: 31 declared links. Enforcement 31.Products to Operators: 28 declared links. Organization 28.Markets to Indicators: 21 declared links. Measurement 21.Markets to Sources: 20 declared links. Measurement 20.Markets to Records: 18 declared links. Enforcement 18.Industries to Places: 17 declared links. Measurement 17.Issues to Topics: 16 declared links. Research 16.Records to Sources: 14 declared links. Enforcement 14.Markets to Industries: 12 declared links. Measurement 12.Markets to Issues: 12 declared links. Research 12.Operators to Named entities: 4 declared links. Organization 4.Sources to Sources: 3 declared links. Measurement 3.Products to Named entities: 2 declared links. Organization 2.Markets12Markets: 12 canonical profiles, 171 links in All declared links, 171 links overall. Documented antitrust and screening definitionsProducts55Products: 55 canonical profiles, 85 links in All declared links, 85 links overall. Source-labeled market participantsOperators20Operators: 20 canonical profiles, 32 links in All declared links, 32 links overall. Official product attributionsIndustries1.9kIndustries: 1,866 canonical profiles, 5,408 links in All declared links, 5,408 links overall. Census hierarchy and screening contextIssues6Issues: 6 canonical profiles, 28 links in All declared links, 28 links overall. Editorial competition research programsTopics8Topics: 8 canonical profiles, 171 links in All declared links, 171 links overall. Institutional research subjects and exact evidence membershipsQuestions46Questions: 46 canonical profiles, 104 links in All declared links, 104 links overall. Public research questions anchored to exact signals and indicatorsPlaces3.3kPlaces: 3,270 canonical profiles, 13,125 links in All declared links, 13,125 links overall. National context, bounded state and local screens, and international regulatory profilesIndicators30Indicators: 30 canonical profiles, 8,105 links in All declared links, 8,105 links overall. Canonical measurement dossiersRecords14Records: 14 canonical profiles, 63 links in All declared links, 63 links overall. Dated official enforcement recordsNamed entities21Named entities: 21 canonical profiles, 37 links in All declared links, 37 links overall. Organizations named in official recordsPublications85Publications: 85 canonical profiles, 413 links in All declared links, 413 links overall. Reports, data dispatches, and international evidence briefsSources45Sources: 45 canonical profiles, 5,588 links in All declared links, 5,588 links overall. Public evidence custody
Canonical nodes5,4785433 public profiles
Declared edges19,193exact encoded links
Node families13bounded domains
Inferred links0name-only joins
Encoded hereProfile-to-indicator observations, issue-program scope, source custody, market participation, official attribution, declared industry context, publication scope, and dated policy relationships.
Never inferred hereSubstitutability, ownership, control, liability, causation, or comparability across unlike measures.
Read evidence standard

Graph census · All declared links

Who the Atlas connects

Every lane is an exact family-pair contract in the active semantic lens, ranked by encoded edge count.

13 of 13families connectedTop 8 routes carry 97.2% of active-layer edges.

Active-lens edges
19,193
All declared links
Family-pair routes
27
exact family contracts
Cross-family pairs
24
between unlike families
Self-family pairs
3
within one family
Open the complete relationship matrixScan all 91 possible family contracts by edge volume or source custody, including explicit structural zeros.
  1. 01PlacesIndicatorsMeasurement layer · open complete contract dossier6,41233.4%
  2. 02PlacesSourcesMeasurement layer · open complete contract dossier3,37817.6%
  3. 03PlacesPlacesMeasurement layer · open complete contract dossier3,20416.7%
  4. 04IndustriesSourcesMeasurement layer · open complete contract dossier1,95410.2%
  5. 05IndustriesIndustriesMeasurement layer · open complete contract dossier1,8499.6%
  6. 06IndustriesIndicatorsMeasurement layer · open complete contract dossier1,5768.2%
  7. 07PublicationsSourcesResearch layer · open complete contract dossier1690.9%
  8. 08PlacesPublicationsResearch layer · open complete contract dossier1140.6%
Inspect the remaining 19 family-pair routes537 links · 2.8% of active-layer edges
  1. 09TopicsPublicationsResearch layer · open complete contract dossier970.5%
  2. 10TopicsQuestionsResearch layer · open complete contract dossier580.3%
  3. 11MarketsProductsMeasurement layer · open complete contract dossier550.3%
  4. 12IndicatorsSourcesMeasurement + Research layer · open complete contract dossier500.3%
  5. 13QuestionsIndicatorsResearch layer · open complete contract dossier460.2%
  6. 14MarketsPublicationsResearch layer · open complete contract dossier330.2%
  7. 15RecordsNamed entitiesEnforcement layer · open complete contract dossier310.2%
  8. 16ProductsOperatorsOrganization layer · open complete contract dossier280.1%
  9. 17MarketsIndicatorsMeasurement layer · open complete contract dossier210.1%
  10. 18MarketsSourcesMeasurement layer · open complete contract dossier200.1%
  11. 19MarketsRecordsEnforcement layer · open complete contract dossier18<0.1%
  12. 20IndustriesPlacesMeasurement layer · open complete contract dossier17<0.1%
  13. 21IssuesTopicsResearch layer · open complete contract dossier16<0.1%
  14. 22RecordsSourcesEnforcement layer · open complete contract dossier14<0.1%
  15. 23MarketsIndustriesMeasurement layer · open complete contract dossier12<0.1%
  16. 24MarketsIssuesResearch layer · open complete contract dossier12<0.1%
  17. 25OperatorsNamed entitiesOrganization layer · open complete contract dossier4<0.1%
  18. 26SourcesSourcesMeasurement layer · open complete contract dossier3<0.1%
  19. 27ProductsNamed entitiesOrganization layer · open complete contract dossier2<0.1%
Bar length uses a logarithmic scale so low-volume lanes remain visible.Counts and shares describe encoded relationships, not economic importance, substitutability, control, liability, or antitrust harm.

Graph query

Build a declared relationship neighborhood

Network depth
PublicationsHow HHI Helps Explain Market ConcentrationAll declared links / 2 hops / all neighbors
Semantic classificationAll 39 relationship contracts remain distinctRead ontology

Choose one exact semantic contract to rebuild the topology, neighborhood, diagnostics, ledger, and public exports around only that declared edge type.

Focused evidence graph

How HHI Helps Explain M...

66 connected nodes in this bounded slice
Visible nodes
48
of 66
Visible edges
101
declared links
Direct links
8
from focus
Hidden nodes
18
plot cap only
Direct neighborhood8
Focused declared relationship network for How HHI Helps Explain Market ConcentrationNodes are placed by graph distance from the selected profile. Color identifies node type. Lines identify encoded relationships in the selected semantic lens.How HHI Helps Explain M...3How HHI Helps Explain Market Concentration: Evidence sources 3BrowsersU.S. browser usage: Latest HHI 3,612Search enginesU.S. search engine usage: Latest HHI 7,359Wireless serviceU.S. mobile wireless service: Latest HHI 3,550Market StructureMarket Structure: Publication memberships 9Methods and Publi...Methods and Public Data: Publication memberships 3StatCounter Globa...Browser market share in United States of America, April 2023-April 2026: Access date 2026-07-17StatCounter Globa...Search engine market share in United States of America, April 2023-April 2026: Access date 2026-07-17Federal Communica...2024 Communications Marketplace Report: Access date 2026-05-16Computing infrastructure providers, data processing, web hosting, and related services: Revenue HHI DSoftware publishers: Revenue HHI DWireless telecommunications carriers (except satellite): Revenue HHI 3,074.2Digital platform gateways: Bounded markets 5Communications infrastructure: Bounded markets 2Food systems and buyer power: Bounded markets 1Health care intermediaries: Bounded markets 2Housing access and local power: Bounded markets 1Transportation networks: Bounded markets 1Which entry, exit, share, switching, price, quality, or capacity evidence can explain the movement inside this exact market boundary?: Herfindahl-Hirschman Index 3,612Which entry, exit, share, switching, price, quality, or capacity evidence can explain the movement inside this exact market boundary?: Herfindahl-Hirschman Index 5,337Which entry, exit, share, switching, price, quality, or capacity evidence can explain the movement inside this exact market boundary?: Herfindahl-Hirschman Index 7,359Which entry, exit, share, switching, price, quality, or capacity evidence can explain the movement inside this exact market boundary?: Herfindahl-Hirschman Index 4,995Which participant-share changes account for the structural movement, and are the denominator and coverage stable across both anchors?: Four-participant concentration ratio 93.8%Which participant-share changes account for the structural movement, and are the denominator and coverage stable across both anchors?: Four-participant concentration ratio 100.0%Which participant-share changes account for the structural movement, and are the denominator and coverage stable across both anchors?: Four-participant concentration ratio 99.4%Which participant-share changes account for the structural movement, and are the denominator and coverage stable across both anchors?: Four-participant concentration ratio 94.4%Which participant-share changes account for the structural movement, and are the denominator and coverage stable across both anchors?: Leading-participant share 50.0%Which participant-share changes account for the structural movement, and are the denominator and coverage stable across both anchors?: Leading-participant share 63.1%Which participant-share changes account for the structural movement, and are the denominator and coverage stable across both anchors?: Leading-participant share 85.2%Which participant-share changes account for the structural movement, and are the denominator and coverage stable across both anchors?: Leading-participant share 68.9%Tracked market HHI: Observation rows 26Tracked market CR4: Observation rows 21Tracked leading-participant share: Observation rows 18Court orders search distribution and data-access remedies: Official stage remedyT-Mobile-Sprint settlement requires divestitures to support wireless entry: Official stage remedyCourt finds Google liable for unlawful search monopoly maintenance: Official stage decisionUnited States files search monopolization complaint against Google: Official stage litigationThe U.S. Competition Landscape: Evidence sources 14Latest market-structure signals moved in both directions.: Exact signals 15Five Digital Gateways: Evidence sources 5Four digital usage systems traced four different structural paths.: Exact signals 12Housing Competition Needs Local Ownership Data: Evidence sources 4Beef Meatpacking Buyer Power: Evidence sources 3Where Public Market-Share Data Runs Out: Evidence sources 2Fixed Broadband Concentration Across Geographic Scales, 2020-2024: Evidence sources 1State Individual Insurance Concentration, 2024: Evidence sources 1State Banking Structure, 2015-2025: Evidence sources 1Consumer Price Index, U.S. city average monthly series: Access date 2026-08-13
Markets12Products55Operators20Industries1866Issues6Topics8Questions46Places3270Indicators30Records14Named entities21Publications85Sources45
PublicationsHow HHI Helps Explain Market Concentration3 linked markets
Evidence sources
3
Status
published
Declared links
8
Latest year
2026

An open explainer on HHI, CR4, effective number of firms, and why source coverage matters.

Open canonical profile
Analysis handoff6

No indicator row is keyed directly to this profile. These analytical contexts are one declared graph hop away.

Direct relationships8

Direct relationship fingerprint

How How HHI Helps Explain M... is declared in the Atlas

All declared links / direct focus links / no composite score
Counterparties
8
Unique canonical endpoints
Encoded links
8
Exact focus edges
Source custody
37.5%
3 source-bearing links
Profile families
3
Direct counterparty types
Counterparty compositionDirect nodes by profile family
Unique endpoints / active layer
Markets3 encoded edges
3
Sources3 encoded edges
3
Topics2 encoded edges
2
Declared counterpartiesCarry exact endpoints into deeper analysis
8 available
01
1 edge1 source-bearing
02
1 edge1 source-bearing
03
1 edge1 source-bearing
04
1 edge0 source-bearing
05
1 edge0 source-bearing
06
1 edge0 source-bearing
Showing 6 of 8 exact direct counterparties.
Direct layer mixMeasurement0Organization0Enforcement0Research8
Encoded confidencehigh0medium0bounded8low0

Relationship ledger

Every plotted line remains an inspectable record

123 edges survive the current focus, depth, node-type, layer, and semantic-type contract.

EnforcementRelated policy contextpolicy scope

Starts the federal case chronology for the default and distribution channels connected to the search and browser profiles; it is legal context rather than a concentration observation.

U.S. Department of Justice / 2020-10-20boundedSource
EnforcementRelated policy contextpolicy scope

Starts the federal case chronology for the default and distribution channels connected to the search and browser profiles; it is legal context rather than a concentration observation.

U.S. Department of Justice / 2020-10-20boundedSource
EnforcementRelated policy contextpolicy scope

Marks the liability decision before the remedies phase. The ruling does not by itself establish a change in the observatory's usage-share HHI series.

U.S. District Court for the District of Columbia / 2024-08-05boundedSource
EnforcementRelated policy contextpolicy scope

Marks the liability decision before the remedies phase. The ruling does not by itself establish a change in the observatory's usage-share HHI series.

U.S. District Court for the District of Columbia / 2024-08-05boundedSource
EnforcementRelated policy contextpolicy scope

The official remedy record reaches search distribution, Chrome, and Gemini. Later market indicators should be monitored separately rather than treated as immediate proof of remedy effects.

U.S. District Court for the District of Columbia / 2025-09-02boundedSource
EnforcementRelated policy contextpolicy scope

The official remedy record reaches search distribution, Chrome, and Gemini. Later market indicators should be monitored separately rather than treated as immediate proof of remedy effects.

U.S. District Court for the District of Columbia / 2025-09-02boundedSource
EnforcementRelated policy contextpolicy scope

Provides the source-reported HHI anchors used by the wireless profile and a monitoring record for post-merger competitive conditions.

Federal Communications Commission / 2024-12-31boundedSource
EnforcementRelated policy contextpolicy scope

Creates a policy anchor for the post-merger market structure. Later FCC HHI observations can be compared in time, but the observatory does not infer that the settlement caused a measured HHI change.

U.S. Department of Justice / 2019-07-26boundedSource
EnforcementOfficial record sourcerecord source

2024 Communications Marketplace Report is the custody record encoded for this dated policy event.

Federal Communications CommissionhighSource
MeasurementConsumer price contextconsumer price context

Wireless telephone services is attached to Wireless service as a broad BLS consumer-price context series. Wireless telephone service prices are broad consumer context for the mobile-wireless dossier; they do not measure plan quality, device subsidies, carrier profitability, switching, or market power.

U.S. Bureau of Labor Statistics / CUUR0000SEED03boundedSource
MeasurementIndicator source custodyindicator source

CR4 is the sum of the four largest sourced non-aggregate participant shares in this released anchor.

StatCounter Global Stats / Browser market share in United States of America April 2023lowSource
MeasurementIndicator source custodyindicator source

CR4 is the sum of the four largest sourced non-aggregate participant shares in this released anchor.

StatCounter Global Stats / Search engine market share in United States of America April 2023lowSource

Showing 8 of 123 exact relationships. The complete filtered ledger remains available in CSV.

111 additional exact edges are available in JSON and CSV.

Graph contract

Relationship families stay separate

The atlas joins routes through encoded custody and context, never through name resemblance or an inferred corporate, legal, or causal relationship.

The atlas exposes only relationships declared in the current public data. A link or issue grouping does not make unlike measures comparable, establish ownership or control, define an antitrust market, assign liability, or show that a policy event caused an economic outcome.

Reusable graph packet

Carry node and edge custody into analysis

The packet preserves node type, canonical route, relationship family, source link, evidence label, confidence, and edge-specific guardrail.

Observatory Atlas | Antitrust Radar