{"license":"https://creativecommons.org/licenses/by/4.0/","dataset":"markets","count":2,"filters":{"markets":["us-mobile-wireless-service","us-search-engine-usage"],"marketsMatched":true,"matchedMarketCount":2,"matchedMarketSlugs":["us-mobile-wireless-service","us-search-engine-usage"],"unmatchedMarkets":[]},"rows":[{"id":"mkt-wireless","slug":"us-mobile-wireless-service","name":"U.S. mobile wireless service","shortName":"Wireless service","geography":"United States","sector":"Telecommunications","dataVintage":"2023","naicsCode":"517112","industryHref":"/industries/517112","crosswalkHref":"/markets/economy?bridgeMarket=us-mobile-wireless-service&bridgeNaics=517112#market-industry-crosswalk","latestHhi":3550,"concentrationClass":"highly_concentrated","cr4":null,"topFirmShare":null,"hhiAtOrAbove2500":true,"hhiDisclosureGap":false,"dataStatus":"verified","confidenceLevel":"high","sourceCount":1,"policySourceCount":2,"policyEventCount":2,"reportCount":2,"briefAction":"Track roll-ups, serial acquisitions, vertical restraints, and remedy compliance before concentration hardens further.","briefActionLevel":"Immediate review","briefChange":"HHI rose by 444 points from 2017 to 2023, moving from 3,106 to 3,550.","briefComparisonDelta":444,"briefComparisonDirection":"increased","briefComparisonFromYear":2017,"briefComparisonMetric":"hhi","briefComparisonToYear":2023,"briefEvidence":"2 records in the evidence custody chain, 0 latest share rows, 2 linked official records, and 2 related briefs support this profile. Status is verified with high confidence.","briefEvidenceState":"measured_hhi","briefGuardrail":"This brief summarizes the observatory's published market screen. It does not define a legal antitrust market, establish market power, identify anticompetitive conduct, estimate consumer harm, or convert descriptive concentration into a causal claim.","briefHeadline":"Wireless service: highly concentrated, with observed HHI up 444 points.","briefHref":"/markets/us-mobile-wireless-service#overview","briefQuestion":"How does the published concentration screen vary across relevant geographic markets, customer groups, and later source releases?","briefSourceIds":"fcc-2024-cmr|doj-tmobile-sprint-settlement-2019","briefStructure":"The latest 2023 screen reports HHI 3,550, classified as highly concentrated."},{"id":"mkt-search","slug":"us-search-engine-usage","name":"U.S. search engine usage","shortName":"Search engines","geography":"United States","sector":"Digital platforms","dataVintage":"2026","naicsCode":"518210","industryHref":"/industries/518210","crosswalkHref":"/markets/economy?bridgeMarket=us-search-engine-usage&bridgeNaics=518210#market-industry-crosswalk","latestHhi":7359,"concentrationClass":"highly_concentrated","cr4":99.4,"topFirmShare":85.16,"hhiAtOrAbove2500":true,"hhiDisclosureGap":false,"dataStatus":"estimated_public","confidenceLevel":"medium","sourceCount":1,"policySourceCount":2,"policyEventCount":3,"reportCount":3,"briefAction":"Test whether the dominant firm controls access, switching, pricing, defaults, distribution, or other chokepoints that weaken consumer choice.","briefActionLevel":"Immediate review","briefChange":"HHI fell by 591 points from 2023 to 2026, moving from 7,950 to 7,359.","briefComparisonDelta":-591,"briefComparisonDirection":"decreased","briefComparisonFromYear":2023,"briefComparisonMetric":"hhi","briefComparisonToYear":2026,"briefEvidence":"3 records in the evidence custody chain, 7 latest share rows, 3 linked official records, and 3 related briefs support this profile. Status is estimated public with medium confidence.","briefEvidenceState":"measured_hhi","briefGuardrail":"This brief summarizes the observatory's published market screen. It does not define a legal antitrust market, establish market power, identify anticompetitive conduct, estimate consumer harm, or convert descriptive concentration into a causal claim.","briefHeadline":"Search engines: highly concentrated, with observed HHI down 591 points.","briefHref":"/markets/us-search-engine-usage#overview","briefQuestion":"Does the observed usage structure persist in revenue, switching, access, quality, and conduct evidence under a legally relevant market definition?","briefSourceIds":"statcounter-search-us-2026|doj-google-search-case-2020|doj-google-search-remedies-2025","briefStructure":"The latest 2026 screen reports HHI 7,359, classified as highly concentrated. Google Search leads the sourced distribution at 85.2%. The four largest named participants account for 99.4%."}]}