{"license":"https://creativecommons.org/licenses/by/4.0/","dataset":"atlas","view":"relationship-type-profile","updatedThrough":"2026-08-15","guardrail":"Editorial theme membership does not rank publication quality, rigor, evidence strength, importance, influence, impact, or policy effect.","filters":{"query":"","relationshipType":"topic_publication","relationshipTypeMatched":true},"definition":{"boundary":"Editorial theme membership does not rank publication quality, rigor, evidence strength, importance, influence, impact, or policy effect.","category":"scope","definition":"Connects an institutional research topic to every current publication carrying that exact editorial theme identifier.","direction":"Institutional research topic to themed publication","evidenceBasis":"The stable theme identifiers stored in the unified publication library record.","id":"topic_publication","label":"Publication membership in research topic","layer":"research","shortLabel":"Topic publication"},"summary":{"nodeCount":5478,"edgeCount":19193,"sourceCount":0,"profileCount":5433,"nodeKindCount":13,"layerCount":4,"typeEdgeCount":97,"matchedEdgeCount":97,"endpointNodeCount":93,"familyContractCount":1,"sourceLinkedEdgeCount":0,"sourceLinkedShare":0},"familyContracts":[{"color":"#60a5fa","count":97,"directionLabels":["Topics to Publications"],"fromColor":"#ea580c","fromKind":"topic","fromLabel":"Topics","href":"/atlas/relationships/topic--report","id":"topic--report","share":1,"toColor":"#6366f1","toKind":"report","toLabel":"Publications"}],"confidence":[{"count":97,"id":"bounded","label":"Bounded","share":1}],"sources":[],"nodes":[{"id":"report:international-ALB","kind":"report","label":"Albania Competition Policy Evidence Brief","shortLabel":"ALB policy brief","description":"Reported authority activity for 2015-2024; no PMR packet.","href":"/research/international/alb","metricLabel":"Published measures","metricValue":"8","detail":"AR-ICP-2026-01 / Enforcement only","status":"current international brief","year":2026,"color":"#6366f1","searchText":"alb albania ar-icp-2026-01 enforcement-only enforcement only reported authority activity for 2015-2024; no pmr packet. competition trends merger control authority activity","connectionCount":3},{"id":"report:international-ARG","kind":"report","label":"Argentina Competition Policy Evidence Brief","shortLabel":"ARG policy brief","description":"PMR at 2025-01-01 and reported authority activity for 2015-2024.","href":"/research/international/arg","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-02 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"arg argentina ar-icp-2026-02 joined joined evidence pmr at 2025-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-ARM","kind":"report","label":"Armenia Competition Policy Evidence Brief","shortLabel":"ARM policy brief","description":"PMR at 2024-01-01; no Competition Trends economy packet.","href":"/research/international/arm","metricLabel":"Published measures","metricValue":"9","detail":"AR-ICP-2026-03 / Regulation only","status":"current international brief","year":2026,"color":"#6366f1","searchText":"arm armenia ar-icp-2026-03 pmr-only regulation only pmr at 2024-01-01; no competition trends economy packet. product market regulation pmr","connectionCount":3},{"id":"report:international-AUS","kind":"report","label":"Australia Competition Policy Evidence Brief","shortLabel":"AUS policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/aus","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-04 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"aus australia ar-icp-2026-04 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-AUT","kind":"report","label":"Austria Competition Policy Evidence Brief","shortLabel":"AUT policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/aut","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-05 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"aut austria ar-icp-2026-05 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-BRB","kind":"report","label":"Barbados Competition Policy Evidence Brief","shortLabel":"BRB policy brief","description":"Reported authority activity for 2015-2024; no PMR packet.","href":"/research/international/brb","metricLabel":"Published measures","metricValue":"8","detail":"AR-ICP-2026-06 / Enforcement only","status":"current international brief","year":2026,"color":"#6366f1","searchText":"brb barbados ar-icp-2026-06 enforcement-only enforcement only reported authority activity for 2015-2024; no pmr packet. competition trends merger control authority activity","connectionCount":3},{"id":"report:rep-meatpacking-buyer-power","kind":"report","label":"Beef Meatpacking Buyer Power","shortLabel":"Beef Meatpacking Buyer...","description":"A source-backed briefing on national beef-packer buyer concentration, the related Census slaughtering-industry screen, and the market boundaries neither metric can establish.","href":"/reports/meatpacking-buyer-power","metricLabel":"Evidence sources","metricValue":"3","detail":"1 linked market","status":"published","year":2026,"color":"#6366f1","searchText":"beef meatpacking buyer power why an 85% procurement cr4 is not the same as an industry hhi a source-backed briefing on national beef-packer buyer concentration, the related census slaughtering-industry screen, and the market boundaries neither metric can establish. explains what the national beef-packer cr4 reveals, why hhi remains withheld, and how the related census industry screen should be used without redefining a cattle procurement market. usda ers historical national cr4 for steer and heifer purchases, paired with separately bounded 2017 and 2022 economic census revenue concentration rows for naics 311611.","connectionCount":6},{"id":"report:international-BEL","kind":"report","label":"Belgium Competition Policy Evidence Brief","shortLabel":"BEL policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/bel","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-07 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"bel belgium ar-icp-2026-07 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-BRA","kind":"report","label":"Brazil Competition Policy Evidence Brief","shortLabel":"BRA policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/bra","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-08 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"bra brazil ar-icp-2026-08 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:insight-industry-concentration-shifts","kind":"report","label":"Broad-sector concentration medians did not move as one economy.","shortLabel":"Industry shifts","description":"Seventeen strict 2017-2022 Census sector medians point back to the exact six-digit matched rows that make each screen possible. A sector median is an orientation statistic over a strict matched Census screen. It is not a sector HHI, a legal market, a weighted economy-wide change, or evidence that concentration caused an outcome.","href":"/insights/industry-concentration-shifts-2017-2022","metricLabel":"Exact signals","metricValue":"17","detail":"AR-CI-2026-03 / Domain readout","status":"current insight","year":2026,"color":"#6366f1","searchText":"broad-sector concentration medians did not move as one economy. industry shifts seventeen strict 2017-2022 census sector medians point back to the exact six-digit matched rows that make each screen possible. census industries domain readout ar-ci-2026-03 sector medians split across all three directions. across 17 exact latest-to-prior rows, 10 increased, 6 decreased, and 1 was unchanged. every median uses its own strict six-digit matched universe. information recorded the largest positive median shift in this sector register. information moved from a paired-universe median hhi of 568.5 in 2017 to 741.4 in 2022 (+172.9 hhi points). utilities recorded the largest negative median shift in this sector register. utilities moved from a paired-universe median hhi of 692.4 in 2017 to 602 in 2022 (-90.4 hhi points). health care and social assistance was unchanged at the displayed precision. health care and social assistance moved from a paired-universe median hhi of 35.8 in 2017 to 35.8 in 2022 (0.0 hhi points). accommodation and food services median detailed-industry hhi administrative and support and waste management and remediation services median detailed-industry hhi arts, entertainment, and recreation median detailed-industry hhi construction median detailed-industry hhi educational services median detailed-industry hhi finance and insurance median detailed-industry hhi health care and social assistance median detailed-industry hhi information median detailed-industry hhi manufacturing median detailed-industry hhi mining, quarrying, and oil and gas extraction median detailed-industry hhi other services (except public administration) median detailed-industry hhi professional, scientific, and technical services median detailed-industry hhi real estate and rental and leasing median detailed-industry hhi retail trade median detailed-industry hhi transportation and warehousing median detailed-industry hhi utilities median detailed-industry hhi wholesale trade median detailed-industry hhi","connectionCount":3},{"id":"report:international-BGR","kind":"report","label":"Bulgaria Competition Policy Evidence Brief","shortLabel":"BGR policy brief","description":"PMR at 2024-01-01 and reported authority activity for 2015-2024.","href":"/research/international/bgr","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-09 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"bgr bulgaria ar-icp-2026-09 joined joined evidence pmr at 2024-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:rep-business-dynamism-sectors","kind":"report","label":"Business Dynamism Across U.S. Sectors, 1978-2023","shortLabel":"Business Dynamism Acros...","description":"A source-backed research brief on 46 years of establishment and job flows, the different entry paths of 19 broad sectors, and a guarded cross-section linking 2023 entry to 2022 detailed-industry structure.","href":"/reports/business-dynamism-across-sectors-1978-2023","metricLabel":"Evidence sources","metricValue":"2","detail":"0 linked markets","status":"published","year":2026,"color":"#6366f1","searchText":"business dynamism across u.s. sectors, 1978-2023 entry weakened nationally while broad-sector paths diverged a source-backed research brief on 46 years of establishment and job flows, the different entry paths of 19 broad sectors, and a guarded cross-section linking 2023 entry to 2022 detailed-industry structure. shows the long decline in national business entry, the range of 19 broad-sector paths, and what a guarded 17-sector structure comparison can and cannot establish. u.s. census bureau 2023 business dynamics statistics national and broad-sector annual tables for 1978-2023, paired only in a separately labeled cross-section with 2022 economic census medians of published six-digit industry hhi.","connectionCount":4},{"id":"report:international-CAN","kind":"report","label":"Canada Competition Policy Evidence Brief","shortLabel":"CAN policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/can","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-10 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"can canada ar-icp-2026-10 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-CHL","kind":"report","label":"Chile Competition Policy Evidence Brief","shortLabel":"CHL policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/chl","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-11 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"chl chile ar-icp-2026-11 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-CHN","kind":"report","label":"China Competition Policy Evidence Brief","shortLabel":"CHN policy brief","description":"PMR at 2024-01-01; no Competition Trends economy packet.","href":"/research/international/chn","metricLabel":"Published measures","metricValue":"9","detail":"AR-ICP-2026-12 / Regulation only","status":"current international brief","year":2026,"color":"#6366f1","searchText":"chn china ar-icp-2026-12 pmr-only regulation only pmr at 2024-01-01; no competition trends economy packet. product market regulation pmr","connectionCount":3},{"id":"report:international-TWN","kind":"report","label":"Chinese Taipei Competition Policy Evidence Brief","shortLabel":"TWN policy brief","description":"PMR at 2024-01-01 and reported authority activity for 2015-2024.","href":"/research/international/twn","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-13 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"twn chinese taipei ar-icp-2026-13 joined joined evidence pmr at 2024-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-COL","kind":"report","label":"Colombia Competition Policy Evidence Brief","shortLabel":"COL policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/col","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-14 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"col colombia ar-icp-2026-14 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-COMESA","kind":"report","label":"COMESA Competition Policy Evidence Brief","shortLabel":"COMESA policy brief","description":"Regional enforcement scope for 2015-2024; no economy geometry or PMR packet.","href":"/research/international/comesa","metricLabel":"Published measures","metricValue":"8","detail":"AR-ICP-2026-66 / Regional authority","status":"current international brief","year":2026,"color":"#6366f1","searchText":"comesa comesa ar-icp-2026-66 regional-authority regional authority regional enforcement scope for 2015-2024; no economy geometry or pmr packet. competition trends merger control authority activity","connectionCount":3},{"id":"report:international-CRI","kind":"report","label":"Costa Rica Competition Policy Evidence Brief","shortLabel":"CRI policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/cri","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-15 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"cri costa rica ar-icp-2026-15 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-HRV","kind":"report","label":"Croatia Competition Policy Evidence Brief","shortLabel":"HRV policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/hrv","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-16 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"hrv croatia ar-icp-2026-16 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-CYP","kind":"report","label":"Cyprus Competition Policy Evidence Brief","shortLabel":"CYP policy brief","description":"PMR at 2024-01-01; no Competition Trends economy packet.","href":"/research/international/cyp","metricLabel":"Published measures","metricValue":"9","detail":"AR-ICP-2026-17 / Regulation only","status":"current international brief","year":2026,"color":"#6366f1","searchText":"cyp cyprus ar-icp-2026-17 pmr-only regulation only pmr at 2024-01-01; no competition trends economy packet. product market regulation pmr","connectionCount":3},{"id":"report:international-CZE","kind":"report","label":"Czechia Competition Policy Evidence Brief","shortLabel":"CZE policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/cze","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-18 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"cze czechia ar-icp-2026-18 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-DNK","kind":"report","label":"Denmark Competition Policy Evidence Brief","shortLabel":"DNK policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/dnk","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-19 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"dnk denmark ar-icp-2026-19 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-ECU","kind":"report","label":"Ecuador Competition Policy Evidence Brief","shortLabel":"ECU policy brief","description":"Reported authority activity for 2015-2024; no PMR packet.","href":"/research/international/ecu","metricLabel":"Published measures","metricValue":"8","detail":"AR-ICP-2026-20 / Enforcement only","status":"current international brief","year":2026,"color":"#6366f1","searchText":"ecu ecuador ar-icp-2026-20 enforcement-only enforcement only reported authority activity for 2015-2024; no pmr packet. competition trends merger control authority activity","connectionCount":3},{"id":"report:international-SLV","kind":"report","label":"El Salvador Competition Policy Evidence Brief","shortLabel":"SLV policy brief","description":"Reported authority activity for 2015-2024; no PMR packet.","href":"/research/international/slv","metricLabel":"Published measures","metricValue":"8","detail":"AR-ICP-2026-21 / Enforcement only","status":"current international brief","year":2026,"color":"#6366f1","searchText":"slv el salvador ar-icp-2026-21 enforcement-only enforcement only reported authority activity for 2015-2024; no pmr packet. competition trends merger control authority activity","connectionCount":3},{"id":"report:international-EST","kind":"report","label":"Estonia Competition Policy Evidence Brief","shortLabel":"EST policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/est","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-22 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"est estonia ar-icp-2026-22 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-EU","kind":"report","label":"European Union Competition Policy Evidence Brief","shortLabel":"EU policy brief","description":"Regional enforcement scope for 2015-2024; no economy geometry or PMR packet.","href":"/research/international/eu","metricLabel":"Published measures","metricValue":"8","detail":"AR-ICP-2026-67 / Regional authority","status":"current international brief","year":2026,"color":"#6366f1","searchText":"eu european union ar-icp-2026-67 regional-authority regional authority regional enforcement scope for 2015-2024; no economy geometry or pmr packet. competition trends merger control authority activity","connectionCount":3},{"id":"report:insight-business-dynamism-pulse","kind":"report","label":"Every national business-flow rate in the monitor was lower in 2023 than in 2022.","shortLabel":"Business dynamism","description":"Six Census BDS rates describe establishment and job flows inside one national private-sector universe; none is a concentration or market-power measure. BDS rates describe flows across the private-sector economy. Lower entry, exit, creation, destruction, net creation, or reallocation does not independently identify reduced competition or its cause.","href":"/insights/business-dynamism-pulse-2023","metricLabel":"Exact signals","metricValue":"6","detail":"AR-CI-2026-06 / Domain readout","status":"current insight","year":2026,"color":"#6366f1","searchText":"every national business-flow rate in the monitor was lower in 2023 than in 2022. business dynamism six census bds rates describe establishment and job flows inside one national private-sector universe; none is a concentration or market-power measure. business dynamics domain readout ar-ci-2026-06 all six monitored national rates moved lower. across 6 exact latest-to-prior rows, 0 increased, 6 decreased. the common direction does not establish a common cause. entry fell more than exit in percentage-point terms. establishment entry rate moved from 11.7% in 2022 to 10.6% in 2023 (-1.043 percentage points). establishment exit rate moved from 9.5% in 2022 to 9.4% in 2023 (-0.116 percentage points). job creation fell more than job destruction, and net job creation narrowed. job creation rate moved from 16.6% in 2022 to 13.6% in 2023 (-2.985 percentage points). job destruction rate moved from 11.2% in 2022 to 11.1% in 2023 (-0.094 percentage points). net job creation rate moved from 5.4% in 2022 to 2.5% in 2023 (-2.890 percentage points). excess job reallocation also moved slightly lower. excess job reallocation rate moved from 22.3% in 2022 to 22.1% in 2023 (-0.188 percentage points). united states business dynamics establishment entry rate united states business dynamics establishment exit rate united states business dynamics job creation rate united states business dynamics job destruction rate united states business dynamics net job creation rate united states business dynamics excess job reallocation rate","connectionCount":2},{"id":"report:international-FIN","kind":"report","label":"Finland Competition Policy Evidence Brief","shortLabel":"FIN policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/fin","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-23 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"fin finland ar-icp-2026-23 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:rep-digital-gateways","kind":"report","label":"Five Digital Gateways","shortLabel":"Five Digital Gateways","description":"A source-backed research brief tracing search, browser, mobile operating-system, social-referral, and AI-assistant concentration without collapsing them into one platform market or ecosystem score.","href":"/reports/digital-gateways-brief","metricLabel":"Evidence sources","metricValue":"5","detail":"5 linked markets","status":"published","year":2026,"color":"#6366f1","searchText":"five digital gateways u.s. platform concentration across five separately bounded usage systems a source-backed research brief tracing search, browser, mobile operating-system, social-referral, and ai-assistant concentration without collapsing them into one platform market or ecosystem score. five system histories, exact share rows, official product-attribution paths, and a public research agenda with every denominator kept separate. five statcounter u.s. public usage-share sources: april 2023-april 2026 search, browser, mobile operating-system, and social-referral anchors, plus the may 2026 ai-assistant baseline. official product-attribution records remain a separate evidence layer.","connectionCount":12},{"id":"report:rep-fixed-broadband-geography","kind":"report","label":"Fixed Broadband Concentration Across Geographic Scales, 2020-2024","shortLabel":"Fixed Broadband Concent...","description":"A source-backed research brief on nine FCC fixed-broadband reporting periods, the divergent paths of national and subnational median HHI, and the public evidence needed to move from geographic screens to mechanisms and outcomes.","href":"/reports/fixed-broadband-geographic-concentration-2020-2024","metricLabel":"Evidence sources","metricValue":"1","detail":"1 linked market","status":"published","year":2026,"color":"#6366f1","searchText":"fixed broadband concentration across geographic scales, 2020-2024 national hhi rose while median state, county, and census-tract concentration fell a source-backed research brief on nine fcc fixed-broadband reporting periods, the divergent paths of national and subnational median hhi, and the public evidence needed to move from geographic screens to mechanisms and outcomes. a four-scale fcc concentration history showing why a rising national hhi and falling subnational medians must be read together without converting them into one market. federal communications commission internet access services figure 5, covering nine semiannual reporting periods from december 2020 through december 2024 for residential fixed connections meeting the 100/20 mbps threshold. the packet preserves the national hhi and medians of separately calculated state, county, and census-tract hhis as distinct geographic summaries.","connectionCount":4},{"id":"report:insight-digital-gateways-change","kind":"report","label":"Four digital usage systems traced four different structural paths.","shortLabel":"Digital gateways","description":"Browser, mobile operating-system, search-engine, and social-referral shares are read side by side without turning them into one platform-power score. Usage and referral shares are proxies inside separately defined systems. The dispatch does not add shares across products, resolve legal market definition, or infer a common competitive cause.","href":"/insights/digital-gateways-change","metricLabel":"Exact signals","metricValue":"12","detail":"AR-CI-2026-02 / Focused note","status":"current insight","year":2026,"color":"#6366f1","searchText":"four digital usage systems traced four different structural paths. digital gateways browser, mobile operating-system, search-engine, and social-referral shares are read side by side without turning them into one platform-power score. defined markets focused note ar-ci-2026-02 social-referral composition shifted toward the leader. social referrals moved from 3,804 in 2025 to 4,995 in 2026 (+1,191.0 hhi points). social referrals moved from 57.5% in 2025 to 68.9% in 2026 (+11.49 percentage points). social referrals moved from 95.1% in 2025 to 94.4% in 2026 (-0.71 percentage points). search hhi and leading share both moved lower. search engines moved from 7,589 in 2025 to 7,359 in 2026 (-230.0 hhi points). search engines moved from 86.7% in 2025 to 85.2% in 2026 (-1.55 percentage points). search engines moved from 99.4% in 2025 to 99.4% in 2026 (-0.02 percentage points). mobile operating-system hhi and leading share moved higher. mobile operating systems moved from 5,094 in 2025 to 5,337 in 2026 (+243.0 hhi points). mobile operating systems moved from 57.6% in 2025 to 63.1% in 2026 (+5.48 percentage points). mobile operating systems moved from 100.0% in 2025 to 100.0% in 2026 (+0.04 percentage points). browser hhi and leading share moved lower while cr4 edged higher. browsers moved from 3,720 in 2025 to 3,612 in 2026 (-108.0 hhi points). browsers moved from 52.3% in 2025 to 50.0% in 2026 (-2.29 percentage points). browsers moved from 93.6% in 2025 to 93.8% in 2026 (+0.15 percentage points). browsers four-participant concentration ratio browsers herfindahl-hirschman index browsers leading-participant share mobile operating systems four-participant concentration ratio mobile operating systems herfindahl-hirschman index mobile operating systems leading-participant share search engines four-participant concentration ratio search engines herfindahl-hirschman index search engines leading-participant share social referrals four-participant concentration ratio social referrals herfindahl-hirschman index social referrals leading-participant share u.s. browser usage u.s. mobile operating-system web usage u.s. search engine usage u.s. social-media referral traffic","connectionCount":10},{"id":"report:international-FRA","kind":"report","label":"France Competition Policy Evidence Brief","shortLabel":"FRA policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/fra","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-24 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"fra france ar-icp-2026-24 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:insight-geographic-screen-divergence","kind":"report","label":"Geographic concentration screens point in different directions at different scales.","shortLabel":"Geographic screens","description":"Six FCC and FDIC comparisons retain their own geography, ownership rule, reporting universe, and time interval. FCC broadband summaries and FDIC branch-deposit screens use different sectors, units, ownership rules, and periods. Their directions are not combined into a geographic competition index.","href":"/insights/geographic-concentration-screen-divergence","metricLabel":"Exact signals","metricValue":"6","detail":"AR-CI-2026-04 / Domain readout","status":"current insight","year":2026,"color":"#6366f1","searchText":"geographic concentration screens point in different directions at different scales. geographic screens six fcc and fdic comparisons retain their own geography, ownership rule, reporting universe, and time interval. broadband geographies domain readout ar-ci-2026-04 five screens moved lower and one moved higher. across 6 exact latest-to-prior rows, 1 increased, 5 decreased. that split spans two public systems and two unequal observation windows. the national fixed-broadband hhi rose while three geographic medians fell. united states moved from hhi 1,195 in dec 2023 to 1,501 in dec 2024 (+306 hhi points). median state moved from hhi 2,994 in dec 2023 to 2,937 in dec 2024 (-57 hhi points). median county moved from hhi 5,356 in dec 2023 to 4,599 in dec 2024 (-757 hhi points). median census tract moved from hhi 5,859 in dec 2023 to 5,504 in dec 2024 (-355 hhi points). national and median-state branch-deposit screens both moved lower over 2015-2025. the national branch-deposit hhi moved from 410 in 2015 to 401 in 2025 (-9.0 hhi points). the annual 51-jurisdiction median branch-deposit hhi moved from 958 in 2015 to 903 in 2025 (-55.0 hhi points). median census tract residential fixed broadband tract median median county residential fixed broadband county median median state residential fixed broadband state median statewide branch-deposit screens median statewide bank-deposit hhi u.s. fixed broadband connections residential fixed broadband national hhi united states branch-deposit screen national bank-deposit hhi","connectionCount":3},{"id":"report:international-DEU","kind":"report","label":"Germany Competition Policy Evidence Brief","shortLabel":"DEU policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/deu","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-25 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"deu germany ar-icp-2026-25 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-GRC","kind":"report","label":"Greece Competition Policy Evidence Brief","shortLabel":"GRC policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/grc","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-26 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"grc greece ar-icp-2026-26 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:rep-housing-data-gap","kind":"report","label":"Housing Competition Needs Local Ownership Data","shortLabel":"Housing Competition Nee...","description":"An open brief explaining why housing affordability and supply stress require local competition data before HHI can be responsibly reported.","href":"/reports/housing-competition-data-gap","metricLabel":"Evidence sources","metricValue":"4","detail":"1 linked market","status":"published","year":2026,"color":"#6366f1","searchText":"housing competition needs local ownership data source-backed housing profile note an open brief explaining why housing affordability and supply stress require local competition data before hhi can be responsibly reported. explains why the housing profile reports public stress signals while withholding hhi pending local firm-level ownership and rental market-share data. harvard jchs renter cost-burden data, freddie mac supply-shortage estimate, gao selected single-family rental investor ownership data, and ftc/doj roll-up inquiry materials.","connectionCount":7},{"id":"report:rep-hhi-primer","kind":"report","label":"How HHI Helps Explain Market Concentration","shortLabel":"How HHI Helps Explain M...","description":"An open explainer on HHI, CR4, effective number of firms, and why source coverage matters.","href":"/reports/hhi-primer","metricLabel":"Evidence sources","metricValue":"3","detail":"3 linked markets","status":"published","year":2026,"color":"#6366f1","searchText":"how hhi helps explain market concentration a public primer for reading concentration dashboards an open explainer on hhi, cr4, effective number of firms, and why source coverage matters. a short public-interest guide to reading descriptive concentration metrics. fcc source-reported hhi and statcounter public usage-share tables.","connectionCount":8},{"id":"report:international-HUN","kind":"report","label":"Hungary Competition Policy Evidence Brief","shortLabel":"HUN policy brief","description":"PMR at 2024-01-01 and reported authority activity for 2015-2024.","href":"/research/international/hun","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-27 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"hun hungary ar-icp-2026-27 joined joined evidence pmr at 2024-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-ISL","kind":"report","label":"Iceland Competition Policy Evidence Brief","shortLabel":"ISL policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/isl","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-28 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"isl iceland ar-icp-2026-28 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-IDN","kind":"report","label":"Indonesia Competition Policy Evidence Brief","shortLabel":"IDN policy brief","description":"PMR at 2024-01-01 and reported authority activity for 2015-2024.","href":"/research/international/idn","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-29 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"idn indonesia ar-icp-2026-29 joined joined evidence pmr at 2024-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-IRL","kind":"report","label":"Ireland Competition Policy Evidence Brief","shortLabel":"IRL policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/irl","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-30 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"irl ireland ar-icp-2026-30 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-ISR","kind":"report","label":"Israel Competition Policy Evidence Brief","shortLabel":"ISR policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/isr","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-31 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"isr israel ar-icp-2026-31 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-ITA","kind":"report","label":"Italy Competition Policy Evidence Brief","shortLabel":"ITA policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/ita","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-32 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"ita italy ar-icp-2026-32 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-JPN","kind":"report","label":"Japan Competition Policy Evidence Brief","shortLabel":"JPN policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/jpn","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-33 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"jpn japan ar-icp-2026-33 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-KEN","kind":"report","label":"Kenya Competition Policy Evidence Brief","shortLabel":"KEN policy brief","description":"PMR at 2024-01-01 and reported authority activity for 2015-2024.","href":"/research/international/ken","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-34 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"ken kenya ar-icp-2026-34 joined joined evidence pmr at 2024-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-KOR","kind":"report","label":"Korea Competition Policy Evidence Brief","shortLabel":"KOR policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/kor","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-35 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"kor korea ar-icp-2026-35 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:insight-market-change-field","kind":"report","label":"Latest market-structure signals moved in both directions.","shortLabel":"Market change field","description":"Fifteen HHI, CR4, and leading-share comparisons preserve their own product boundary, denominator, source, and observed interval. The direction count is an inventory, not a vote about competition. HHI points, CR4 points, and leading-share points across different products and periods are not pooled or ranked.","href":"/insights/market-structure-change-field","metricLabel":"Exact signals","metricValue":"15","detail":"AR-CI-2026-01 / Domain readout","status":"current insight","year":2026,"color":"#6366f1","searchText":"latest market-structure signals moved in both directions. market change field fifteen hhi, cr4, and leading-share comparisons preserve their own product boundary, denominator, source, and observed interval. defined markets domain readout ar-ci-2026-01 the current market field is split. across 15 exact latest-to-prior rows, 8 increased, 7 decreased. the count says only how many bounded comparisons point each way. digital usage screens diverged. social referrals moved from 3,804 in 2025 to 4,995 in 2026 (+1,191.0 hhi points). search engines moved from 7,589 in 2025 to 7,359 in 2026 (-230.0 hhi points). mobile operating systems moved from 5,094 in 2025 to 5,337 in 2026 (+243.0 hhi points). browsers moved from 3,720 in 2025 to 3,612 in 2026 (-108.0 hhi points). each usage system has a separate denominator and remains analytically independent. other market intervals use different clocks. beef meatpacking moved from 81.0% in 1995 to 85.0% in 2019 (+4.00 percentage points). fixed broadband moved from 1,195 in 2023 to 1,501 in 2024 (+306.0 hhi points). wireless service moved from 3,596 in 2021 to 3,550 in 2023 (-46.0 hhi points). their unequal intervals are displayed, not annualized. beef meatpacking four-participant concentration ratio browsers four-participant concentration ratio browsers herfindahl-hirschman index browsers leading-participant share fixed broadband herfindahl-hirschman index mobile operating systems four-participant concentration ratio mobile operating systems herfindahl-hirschman index mobile operating systems leading-participant share search engines four-participant concentration ratio search engines herfindahl-hirschman index search engines leading-participant share social referrals four-participant concentration ratio social referrals herfindahl-hirschman index social referrals leading-participant share wireless service herfindahl-hirschman index u.s. steer and heifer purchases by beef packers u.s. browser usage u.s. residential fixed broadband access u.s. mobile operating-system web usage u.s. search engine usage u.s. social-media referral traffic u.s. mobile wireless service","connectionCount":15},{"id":"report:international-LVA","kind":"report","label":"Latvia Competition Policy Evidence Brief","shortLabel":"LVA policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/lva","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-36 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"lva latvia ar-icp-2026-36 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-LTU","kind":"report","label":"Lithuania Competition Policy Evidence Brief","shortLabel":"LTU policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/ltu","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-37 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"ltu lithuania ar-icp-2026-37 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-LUX","kind":"report","label":"Luxembourg Competition Policy Evidence Brief","shortLabel":"LUX policy brief","description":"PMR at 2023-01-01; no Competition Trends economy packet.","href":"/research/international/lux","metricLabel":"Published measures","metricValue":"9","detail":"AR-ICP-2026-38 / Regulation only","status":"current international brief","year":2026,"color":"#6366f1","searchText":"lux luxembourg ar-icp-2026-38 pmr-only regulation only pmr at 2023-01-01; no competition trends economy packet. product market regulation pmr","connectionCount":3},{"id":"report:international-MLT","kind":"report","label":"Malta Competition Policy Evidence Brief","shortLabel":"MLT policy brief","description":"PMR at 2024-01-01 and reported authority activity for 2015-2024.","href":"/research/international/mlt","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-39 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"mlt malta ar-icp-2026-39 joined joined evidence pmr at 2024-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-MUS","kind":"report","label":"Mauritius Competition Policy Evidence Brief","shortLabel":"MUS policy brief","description":"Reported authority activity for 2015-2024; no PMR packet.","href":"/research/international/mus","metricLabel":"Published measures","metricValue":"8","detail":"AR-ICP-2026-40 / Enforcement only","status":"current international brief","year":2026,"color":"#6366f1","searchText":"mus mauritius ar-icp-2026-40 enforcement-only enforcement only reported authority activity for 2015-2024; no pmr packet. competition trends merger control authority activity","connectionCount":3},{"id":"report:international-MEX","kind":"report","label":"Mexico Competition Policy Evidence Brief","shortLabel":"MEX policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/mex","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-41 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"mex mexico ar-icp-2026-41 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-MDA","kind":"report","label":"Moldova Competition Policy Evidence Brief","shortLabel":"MDA policy brief","description":"PMR at 2025-01-01; no Competition Trends economy packet.","href":"/research/international/mda","metricLabel":"Published measures","metricValue":"9","detail":"AR-ICP-2026-42 / Regulation only","status":"current international brief","year":2026,"color":"#6366f1","searchText":"mda moldova ar-icp-2026-42 pmr-only regulation only pmr at 2025-01-01; no competition trends economy packet. product market regulation pmr","connectionCount":3},{"id":"report:international-MAR","kind":"report","label":"Morocco Competition Policy Evidence Brief","shortLabel":"MAR policy brief","description":"PMR at 2024-01-01; no Competition Trends economy packet.","href":"/research/international/mar","metricLabel":"Published measures","metricValue":"9","detail":"AR-ICP-2026-43 / Regulation only","status":"current international brief","year":2026,"color":"#6366f1","searchText":"mar morocco ar-icp-2026-43 pmr-only regulation only pmr at 2024-01-01; no competition trends economy packet. product market regulation pmr","connectionCount":3},{"id":"report:insight-fixed-broadband-scale-divergence","kind":"report","label":"National fixed-broadband HHI rose while three geographic medians fell.","shortLabel":"Broadband scales","description":"One FCC release provides a useful scale comparison, but the national value and medians of area-level HHIs remain different summary statistics. The state, county, and tract rows are medians of separate area HHIs, not components that average to the national HHI. Reporting geographies are screening units, not presumed legal broadband markets.","href":"/insights/fixed-broadband-scale-divergence-2024","metricLabel":"Exact signals","metricValue":"4","detail":"AR-CI-2026-05 / Focused note","status":"current insight","year":2026,"color":"#6366f1","searchText":"national fixed-broadband hhi rose while three geographic medians fell. broadband scales one fcc release provides a useful scale comparison, but the national value and medians of area-level hhis remain different summary statistics. broadband geographies focused note ar-ci-2026-05 the national connection-share summary moved higher. united states moved from hhi 1,195 in dec 2023 to 1,501 in dec 2024 (+306 hhi points). all three published area medians moved lower. median state moved from hhi 2,994 in dec 2023 to 2,937 in dec 2024 (-57 hhi points). median county moved from hhi 5,356 in dec 2023 to 4,599 in dec 2024 (-757 hhi points). median census tract moved from hhi 5,859 in dec 2023 to 5,504 in dec 2024 (-355 hhi points). the apparent divergence is a research question, not a contradiction. national concentration and the median of local concentration distributions can move differently when provider shares, coverage, entry, technology, or the distribution of area-level values changes. the release does not by itself identify which mechanism dominates. median census tract residential fixed broadband tract median median county residential fixed broadband county median median state residential fixed broadband state median u.s. fixed broadband connections residential fixed broadband national hhi","connectionCount":2},{"id":"report:international-NLD","kind":"report","label":"Netherlands Competition Policy Evidence Brief","shortLabel":"NLD policy brief","description":"PMR at 2024-01-01 and reported authority activity for 2015-2024.","href":"/research/international/nld","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-44 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"nld netherlands ar-icp-2026-44 joined joined evidence pmr at 2024-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-NZL","kind":"report","label":"New Zealand Competition Policy Evidence Brief","shortLabel":"NZL policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/nzl","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-45 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"nzl new zealand ar-icp-2026-45 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-NOR","kind":"report","label":"Norway Competition Policy Evidence Brief","shortLabel":"NOR policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/nor","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-46 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"nor norway ar-icp-2026-46 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-PAN","kind":"report","label":"Panama Competition Policy Evidence Brief","shortLabel":"PAN policy brief","description":"Reported authority activity for 2015-2024; no PMR packet.","href":"/research/international/pan","metricLabel":"Published measures","metricValue":"8","detail":"AR-ICP-2026-47 / Enforcement only","status":"current international brief","year":2026,"color":"#6366f1","searchText":"pan panama ar-icp-2026-47 enforcement-only enforcement only reported authority activity for 2015-2024; no pmr packet. competition trends merger control authority activity","connectionCount":3},{"id":"report:international-PRY","kind":"report","label":"Paraguay Competition Policy Evidence Brief","shortLabel":"PRY policy brief","description":"Reported authority activity for 2015-2024; no PMR packet.","href":"/research/international/pry","metricLabel":"Published measures","metricValue":"8","detail":"AR-ICP-2026-48 / Enforcement only","status":"current international brief","year":2026,"color":"#6366f1","searchText":"pry paraguay ar-icp-2026-48 enforcement-only enforcement only reported authority activity for 2015-2024; no pmr packet. competition trends merger control authority activity","connectionCount":3},{"id":"report:international-PER","kind":"report","label":"Peru Competition Policy Evidence Brief","shortLabel":"PER policy brief","description":"PMR at 2024-01-01 and reported authority activity for 2015-2024.","href":"/research/international/per","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-49 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"per peru ar-icp-2026-49 joined joined evidence pmr at 2024-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-POL","kind":"report","label":"Poland Competition Policy Evidence Brief","shortLabel":"POL policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/pol","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-50 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"pol poland ar-icp-2026-50 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-PRT","kind":"report","label":"Portugal Competition Policy Evidence Brief","shortLabel":"PRT policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/prt","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-51 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"prt portugal ar-icp-2026-51 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:insight-merger-review-pipeline","kind":"report","label":"Reported HSR volume and the Second Request rate both moved lower in FY2025.","shortLabel":"Merger review","description":"Two federal program measures preserve their fiscal-year denominator and procedural meaning without converting review activity into a judgment about transactions or agency performance. HSR transaction counts and Second Request rates describe a federal notification and review pipeline. They do not measure merger harm, deterrence, legal merit, agency quality, or competitive outcomes.","href":"/insights/federal-merger-review-pipeline-fy2025","metricLabel":"Exact signals","metricValue":"2","detail":"AR-CI-2026-07 / Domain readout","status":"current insight","year":2026,"color":"#6366f1","searchText":"reported hsr volume and the second request rate both moved lower in fy2025. merger review two federal program measures preserve their fiscal-year denominator and procedural meaning without converting review activity into a judgment about transactions or agency performance. federal merger activity domain readout ar-ci-2026-07 reported transaction volume edged lower. reported hsr transactions moved from 2,031 in fy2024 to 2,006 in fy2025 (-25 transactions). the second request rate also moved lower. second request rate moved from 3.0% in fy2024 to 2.1% in fy2025 (-0.90 percentage points). the two declines do not explain one another. transaction volume and the share receiving second requests have separate numerators, denominators, and possible drivers. transaction mix, thresholds, exemptions, clearance, and agency allocation remain necessary context. hart-scott-rodino program second request rate hart-scott-rodino program reported hsr transactions","connectionCount":2},{"id":"report:international-ROU","kind":"report","label":"Romania Competition Policy Evidence Brief","shortLabel":"ROU policy brief","description":"PMR at 2025-01-01 and reported authority activity for 2015-2024.","href":"/research/international/rou","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-52 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"rou romania ar-icp-2026-52 joined joined evidence pmr at 2025-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-SAU","kind":"report","label":"Saudi Arabia Competition Policy Evidence Brief","shortLabel":"SAU policy brief","description":"Reported authority activity for 2015-2024; no PMR packet.","href":"/research/international/sau","metricLabel":"Published measures","metricValue":"8","detail":"AR-ICP-2026-53 / Enforcement only","status":"current international brief","year":2026,"color":"#6366f1","searchText":"sau saudi arabia ar-icp-2026-53 enforcement-only enforcement only reported authority activity for 2015-2024; no pmr packet. competition trends merger control authority activity","connectionCount":3},{"id":"report:international-SGP","kind":"report","label":"Singapore Competition Policy Evidence Brief","shortLabel":"SGP policy brief","description":"Reported authority activity for 2015-2024; no PMR packet.","href":"/research/international/sgp","metricLabel":"Published measures","metricValue":"8","detail":"AR-ICP-2026-54 / Enforcement only","status":"current international brief","year":2026,"color":"#6366f1","searchText":"sgp singapore ar-icp-2026-54 enforcement-only enforcement only reported authority activity for 2015-2024; no pmr packet. competition trends merger control authority activity","connectionCount":3},{"id":"report:international-SVK","kind":"report","label":"Slovak Republic Competition Policy Evidence Brief","shortLabel":"SVK policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/svk","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-55 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"svk slovak republic ar-icp-2026-55 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-SVN","kind":"report","label":"Slovenia Competition Policy Evidence Brief","shortLabel":"SVN policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/svn","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-56 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"svn slovenia ar-icp-2026-56 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:international-ZAF","kind":"report","label":"South Africa Competition Policy Evidence Brief","shortLabel":"ZAF policy brief","description":"PMR at 2023-01-01; no Competition Trends economy packet.","href":"/research/international/zaf","metricLabel":"Published measures","metricValue":"9","detail":"AR-ICP-2026-57 / Regulation only","status":"current international brief","year":2026,"color":"#6366f1","searchText":"zaf south africa ar-icp-2026-57 pmr-only regulation only pmr at 2023-01-01; no competition trends economy packet. product market regulation pmr","connectionCount":3},{"id":"report:international-ESP","kind":"report","label":"Spain Competition Policy Evidence Brief","shortLabel":"ESP policy brief","description":"PMR at 2023-01-01 and reported authority activity for 2015-2024.","href":"/research/international/esp","metricLabel":"Published measures","metricValue":"17","detail":"AR-ICP-2026-58 / Joined evidence","status":"current international brief","year":2026,"color":"#6366f1","searchText":"esp spain ar-icp-2026-58 joined joined evidence pmr at 2023-01-01 and reported authority activity for 2015-2024. product market regulation pmr competition trends merger control authority activity","connectionCount":5},{"id":"report:rep-state-banking-structure","kind":"report","label":"State Banking Structure, 2015-2025","shortLabel":"State Banking Structure...","description":"A source-backed research brief on eleven annual FDIC statewide branch-deposit screens, the changing geography beneath stable national aggregates, and the limits of statewide concentration measures.","href":"/reports/state-banking-structure-2015-2025","metricLabel":"Evidence sources","metricValue":"1","detail":"0 linked markets","status":"published","year":2026,"color":"#6366f1","searchText":"state banking structure, 2015-2025 stable national concentration can coexist with large state-level shifts a source-backed research brief on eleven annual fdic statewide branch-deposit screens, the changing geography beneath stable national aggregates, and the limits of statewide concentration measures. shows how a nearly unchanged national hhi can coexist with large state-level movements, classification turnover, and declining branch and organization counts. fdic annual summary of deposits branch records for 2015-2025, independently grouped to the reported top bank holding company when available and otherwise to the insured institution.","connectionCount":3},{"id":"report:rep-state-individual-insurance","kind":"report","label":"State Individual Insurance Concentration, 2024","shortLabel":"State Individual Insura...","description":"A source-backed research brief mapping the 2024 KFF state concentration cross-section for the ACA-regulated individual health insurance market, including HHI, leading-insurer share, rival depth, regional variation, and the public evidence needed for stronger competition analysis.","href":"/reports/state-individual-insurance-concentration-2024","metricLabel":"Evidence sources","metricValue":"1","detail":"1 linked market","status":"published","year":2026,"color":"#6366f1","searchText":"state individual insurance concentration, 2024 highly concentrated readings appear in 36 of 51 jurisdictions a source-backed research brief mapping the 2024 kff state concentration cross-section for the aca-regulated individual health insurance market, including hhi, leading-insurer share, rival depth, regional variation, and the public evidence needed for stronger competition analysis. a 51-jurisdiction kff concentration cross-section showing where high hhi, leading-insurer share, and thin rival depth coincide, with every result bounded to the 2024 aca individual market. kff 2024 individual insurance market competition data for the 50 states and district of columbia, including source-reported hhi, leading-insurer share, and the count of insurers with more than 5 percent of each jurisdiction's aca-regulated individual market.","connectionCount":4},{"id":"report:international-SWE","kind":"report","label":"Sweden Competition Policy Evidence Brief","shortLabel":"SWE policy brief","description":"PMR at 2023-01-01 and reported authority activity for 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transaction-size field without treating federal procedure as a finding of competitive harm.","href":"/reports/federal-merger-review-2016-2025","metricLabel":"Evidence sources","metricValue":"1","detail":"0 linked markets","status":"published","year":2026,"color":"#6366f1","searchText":"the federal merger review pipeline, 2016-2025 notification volume swung widely while annual second request rates stayed between 1.6% and 3.0% a source-backed research brief tracing ten fiscal years of hsr notifications, monthly activity, in-depth review, and the fy2025 transaction-size field without treating federal procedure as a finding of competitive harm. a ten-year map of federal merger notifications and review procedure with exact monthly and transaction-size evidence, source custody, and permanent outcome guardrails. federal trade commission and u.s. department of justice 48th hart-scott-rodino annual report, including fy2016-fy2025 annual and fiscal-month tables and the fy2025 transaction-size table.","connectionCount":2},{"id":"report:rep-us-competition-landscape-2026","kind":"report","label":"The U.S. Competition Landscape","shortLabel":"The U.S. Competition La...","description":"A national briefing that aligns defined-market signals, industry structure, state and local geographic concentration screens, merger activity, and enforcement records without collapsing their different scopes.","href":"/reports/us-competition-landscape-2026","metricLabel":"Evidence sources","metricValue":"14","detail":"8 linked markets","status":"published","year":2026,"color":"#6366f1","searchText":"the u.s. competition landscape state of competition 2026: five evidence systems, no single score a national briefing that aligns defined-market signals, industry structure, state and local geographic concentration screens, merger activity, and enforcement records without collapsing their different scopes. a source-backed state-of-competition briefing across markets, industries, state systems, local banking screens, mergers, and enforcement, with every system kept in its own analytical universe. 2022 and 2017 u.s. economic census industry concentration tables, usda ers historical meatpacking cr4, kff 2024 state individual-market hhi, fdic 2025 statewide and county summary of deposits screens, the fy2025 ftc/doj hsr report, and source-backed market and enforcement records.","connectionCount":26},{"id":"report:international-TUN","kind":"report","label":"Tunisia Competition Policy Evidence Brief","shortLabel":"TUN policy brief","description":"Reported authority activity for 2015-2024; no PMR packet.","href":"/research/international/tun","metricLabel":"Published measures","metricValue":"8","detail":"AR-ICP-2026-62 / Enforcement only","status":"current international brief","year":2026,"color":"#6366f1","searchText":"tun tunisia ar-icp-2026-62 enforcement-only enforcement only reported authority activity for 2015-2024; no pmr packet. competition trends merger control authority 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control authority activity","connectionCount":5},{"id":"report:rep-public-data-gaps","kind":"report","label":"Where Public Market-Share Data Runs Out","shortLabel":"Where Public Market-Sha...","description":"An open report explaining why the observatory sometimes withholds HHI even when public facts indicate concentration.","href":"/reports/public-data-gaps","metricLabel":"Evidence sources","metricValue":"2","detail":"2 linked markets","status":"published","year":2026,"color":"#6366f1","searchText":"where public market-share data runs out why incomplete profiles are part of the product an open report explaining why the observatory sometimes withholds hhi even when public facts indicate concentration. a transparency note on incomplete data and why the observatory never fills gaps with invented shares. bts public airline market-share table and ftc pbm interim staff report materials.","connectionCount":5},{"id":"topic:business-dynamism","kind":"topic","label":"Business Dynamism","shortLabel":"Business Dynamism","description":"Where are establishment entry, exit, job flows, and reallocation changing, and what evidence can distinguish competitive mechanisms from co-movement?","href":"/research/topics/business-dynamism","metricLabel":"Publication memberships","metricValue":"2","detail":"AR-T05 / 0 issue programs / 5 evidence lanes","status":"institutional research topic","year":2026,"color":"#ea580c","searchText":"ar-t05 business dynamism dynamism where are establishment entry, exit, job flows, and reallocation changing, and what evidence can distinguish competitive mechanisms from co-movement? publish long-run business-flow paths beside sector structure while preserving rate definitions, denominators, and non-causal interpretation boundaries. entry, exit, job creation, destruction, net creation, and reallocation are distinct measures. aggregate movement does not identify a competition cause or welfare effect. firm-age, establishment-age, place, sector, financing, demand, technology, regulation, ownership, and merger context under stable definitions. economic researchers, policymakers, regional analysts, and reporters ar-rb-2026-04 business dynamism across u.s. sectors, 1978-2023 ar-ci-2026-06 every national business-flow rate in the monitor was lower in 2023 than in 2022.","connectionCount":8},{"id":"topic:competition-policy-systems","kind":"topic","label":"Competition Policy Systems","shortLabel":"Competition Policy Systems","description":"How do published regulatory settings and separately reported authority activity vary across economies and over time?","href":"/research/topics/competition-policy-systems","metricLabel":"Publication memberships","metricValue":"67","detail":"AR-T08 / 0 issue programs / 5 evidence lanes","status":"institutional research topic","year":2026,"color":"#ea580c","searchText":"ar-t08 competition policy systems policy systems how do published regulatory settings and separately reported authority activity vary across economies and over time? connect international regulatory-framework evidence, merger-control activity, economy dossiers, and source-separated research briefs without producing a policy-performance score. product market regulation settings and authority activity retain separate units, vintages, ranks, and missing lanes. activity is not effectiveness, deterrence, welfare, enforcement quality, or causation. comparable legal and institutional context, market outcomes, staffing, budgets, case characteristics, remedy implementation, reporting completeness, and stable annual definitions. comparative-policy researchers, authorities, officials, and international organizations ar-icp-2026-01 albania competition policy evidence brief ar-icp-2026-02 argentina competition policy evidence brief ar-icp-2026-03 armenia competition policy evidence brief ar-icp-2026-04 australia competition policy evidence brief ar-icp-2026-05 austria competition policy evidence brief ar-icp-2026-06 barbados competition policy evidence brief ar-icp-2026-07 belgium competition policy evidence brief ar-icp-2026-08 brazil competition policy evidence brief ar-icp-2026-09 bulgaria competition policy evidence brief ar-icp-2026-10 canada competition policy evidence brief ar-icp-2026-11 chile competition policy evidence brief ar-icp-2026-12 china competition policy evidence brief ar-icp-2026-13 chinese taipei competition policy evidence brief ar-icp-2026-14 colombia competition policy evidence brief ar-icp-2026-15 costa rica competition policy evidence brief ar-icp-2026-16 croatia competition policy evidence brief ar-icp-2026-17 cyprus competition policy evidence brief ar-icp-2026-18 czechia competition policy evidence brief ar-icp-2026-19 denmark competition policy evidence brief ar-icp-2026-20 ecuador competition policy evidence brief ar-icp-2026-21 el salvador competition policy evidence brief ar-icp-2026-22 estonia competition policy evidence brief ar-icp-2026-23 finland competition policy evidence brief ar-icp-2026-24 france competition policy evidence brief ar-icp-2026-25 germany competition policy evidence brief ar-icp-2026-26 greece competition policy evidence brief ar-icp-2026-27 hungary competition policy evidence brief ar-icp-2026-28 iceland competition policy evidence brief ar-icp-2026-29 indonesia competition policy evidence brief ar-icp-2026-30 ireland competition policy evidence brief ar-icp-2026-31 israel competition policy evidence brief ar-icp-2026-32 italy competition policy evidence brief ar-icp-2026-33 japan competition policy evidence brief ar-icp-2026-34 kenya competition policy evidence brief ar-icp-2026-35 korea competition policy evidence brief ar-icp-2026-36 latvia competition policy evidence brief ar-icp-2026-37 lithuania competition policy evidence brief ar-icp-2026-38 luxembourg competition policy evidence brief ar-icp-2026-39 malta competition policy evidence brief ar-icp-2026-40 mauritius competition policy evidence brief ar-icp-2026-41 mexico competition policy evidence brief ar-icp-2026-42 moldova competition policy evidence brief ar-icp-2026-43 morocco competition policy evidence brief ar-icp-2026-44 netherlands competition policy evidence brief ar-icp-2026-45 new zealand competition policy evidence brief ar-icp-2026-46 norway competition policy evidence brief ar-icp-2026-47 panama competition policy evidence brief ar-icp-2026-48 paraguay competition policy evidence brief ar-icp-2026-49 peru competition policy evidence brief ar-icp-2026-50 poland competition policy evidence brief ar-icp-2026-51 portugal competition policy evidence brief ar-icp-2026-52 romania competition policy evidence brief ar-icp-2026-53 saudi arabia competition policy evidence brief ar-icp-2026-54 singapore competition policy evidence brief ar-icp-2026-55 slovak republic competition policy evidence brief ar-icp-2026-56 slovenia competition policy evidence brief ar-icp-2026-57 south africa competition policy evidence brief ar-icp-2026-58 spain competition policy evidence brief ar-icp-2026-59 sweden competition policy evidence brief ar-icp-2026-60 switzerland competition policy evidence brief ar-icp-2026-61 thailand competition policy evidence brief ar-icp-2026-62 tunisia competition policy evidence brief ar-icp-2026-63 türkiye competition policy evidence brief ar-icp-2026-64 united kingdom competition policy evidence brief ar-icp-2026-65 united states competition policy evidence brief ar-icp-2026-66 comesa competition policy evidence brief ar-icp-2026-67 european union competition policy evidence brief","connectionCount":67},{"id":"topic:digital-platforms","kind":"topic","label":"Digital Platforms","shortLabel":"Digital Platforms","description":"How do defaults, distribution, data access, interoperability, and adjacent-platform positions shape entry across separately measured digital systems?","href":"/research/topics/digital-platforms","metricLabel":"Publication memberships","metricValue":"2","detail":"AR-T02 / 1 issue program / 5 evidence lanes","status":"institutional research topic","year":2026,"color":"#ea580c","searchText":"ar-t02 digital platforms digital how do defaults, distribution, data access, interoperability, and adjacent-platform positions shape entry across separately measured digital systems? trace usage and referral screens into exact product, operator, official-record, and research links while keeping every digital denominator separate. search, browser, mobile operating system, social referral, and ai-assistant usage are separate screens. their adjacency does not establish one ecosystem market, common control, or a combined concentration measure. stable user and firm panels, default and distribution contracts, switching, multihoming, interoperability, data access, compute, price, quality, and entry records. technology-policy researchers, reporters, authorities, and advocates ar-rb-2026-02 five digital gateways ar-ci-2026-02 four digital usage systems traced four different structural paths.","connectionCount":15},{"id":"topic:geographic-competition","kind":"topic","label":"Geographic Competition","shortLabel":"Geographic Competition","description":"How does competitive structure vary across national, state, county, tract, route, and other local frames?","href":"/research/topics/geographic-competition","metricLabel":"Publication memberships","metricValue":"7","detail":"AR-T04 / 4 issue programs / 5 evidence lanes","status":"institutional research topic","year":2026,"color":"#ea580c","searchText":"ar-t04 geographic competition places how does competitive structure vary across national, state, county, tract, route, and other local frames? connect place-based concentration screens to their exact geography, source vintage, ownership rules, and local-market research needs. a statewide, county, tract, or national screen does not establish a legal geographic market. medians of local hhis are not interchangeable with one national hhi. area-level shares and distributions, ownership and entry histories, local prices and quality, commuting or procurement patterns, capacity, switching, and stable geographic definitions. local officials, researchers, journalists, and community advocates ar-sc-2026-01 the u.s. competition landscape ar-dn-2026-02 housing competition needs local ownership data ar-rb-2026-03 state banking structure, 2015-2025 ar-rb-2026-06 fixed broadband concentration across geographic scales, 2020-2024 ar-rb-2026-07 state individual insurance concentration, 2024 ar-ci-2026-04 geographic concentration screens point in different directions at different scales. ar-ci-2026-05 national fixed-broadband hhi rose while three geographic medians fell.","connectionCount":17},{"id":"topic:industry-structure","kind":"topic","label":"Industry Structure","shortLabel":"Industry Structure","description":"Which detailed industries account for broad-sector concentration patterns, and where does strict historical evidence show structural movement?","href":"/research/topics/industry-structure","metricLabel":"Publication memberships","metricValue":"4","detail":"AR-T03 / 1 issue program / 5 evidence lanes","status":"institutional research topic","year":2026,"color":"#ea580c","searchText":"ar-t03 industry structure industries which detailed industries account for broad-sector concentration patterns, and where does strict historical evidence show structural movement? keep census industry distributions, strict same-code history, business flows, and reviewed market context inspectable at their published levels. a naics industry is a statistical classification, not automatically an antitrust market. sector medians, revenue concentration, and business dynamics retain different units and vintages. strict six-digit histories, disclosure status, firm and establishment context, product and geographic boundaries, entry, conduct, prices, quality, and enforcement records. industrial-organization researchers, sector analysts, and public agencies ar-sc-2026-01 the u.s. competition landscape ar-rb-2026-01 beef meatpacking buyer power ar-rb-2026-04 business dynamism across u.s. sectors, 1978-2023 ar-ci-2026-03 broad-sector concentration medians did not move as one economy.","connectionCount":22},{"id":"topic:market-structure","kind":"topic","label":"Market Structure","shortLabel":"Market Structure","description":"Where is market power concentrated, how is structure changing, and which competitive mechanism still needs to be tested?","href":"/research/topics/market-structure","metricLabel":"Publication memberships","metricValue":"9","detail":"AR-T01 / 6 issue programs / 5 evidence lanes","status":"institutional research topic","year":2026,"color":"#ea580c","searchText":"ar-t01 market structure markets where is market power concentrated, how is structure changing, and which competitive mechanism still needs to be tested? connect definition-bound concentration measures, participant shares, historical movement, and public research questions without collapsing unlike markets into one score. a concentration measure is a screen inside its stated product, geography, denominator, and period. it is not by itself proof of market power, harm, causation, liability, or the correct legal market. comparable participant shares, entry and exit, switching, price, quality, capacity, transactions, and stable market-definition records. researchers, journalists, enforcement staff, and public officials ar-sc-2026-01 the u.s. competition landscape ar-mm-2026-01 how hhi helps explain market concentration ar-rb-2026-02 five digital gateways ar-rb-2026-01 beef meatpacking buyer power ar-rb-2026-03 state banking structure, 2015-2025 ar-rb-2026-06 fixed broadband concentration across geographic scales, 2020-2024 ar-rb-2026-07 state individual insurance concentration, 2024 ar-ci-2026-01 latest market-structure signals moved in both directions. ar-ci-2026-02 four digital usage systems traced four different structural paths.","connectionCount":30},{"id":"topic:merger-review","kind":"topic","label":"Merger Review","shortLabel":"Merger Review","description":"How are notification volume, transaction mix, review intensity, official outcomes, and observed market structure changing without conflating process with effect?","href":"/research/topics/merger-review","metricLabel":"Publication memberships","metricValue":"3","detail":"AR-T06 / 2 issue programs / 5 evidence lanes","status":"institutional research topic","year":2026,"color":"#ea580c","searchText":"ar-t06 merger review mergers how are notification volume, transaction mix, review intensity, official outcomes, and observed market structure changing without conflating process with effect? keep federal filing, transaction-size, review-process, structural-screen, and official-record evidence in separate but connected lanes. notification counts, second request rates, concentration screens, complaints, settlements, and abandonments have different denominators and meanings. none alone establishes transaction effects or legal merit. transaction-level industry and size, thresholds, exemptions, agency allocation, review timing, outcomes, remedies, market shares, entry, price, quality, and capacity. merger researchers, oversight staff, journalists, and enforcement practitioners ar-sc-2026-01 the u.s. competition landscape ar-rb-2026-05 the federal merger review pipeline, 2016-2025 ar-ci-2026-07 reported hsr volume and the second request rate both moved lower in fy2025.","connectionCount":7},{"id":"topic:methods-public-data","kind":"topic","label":"Methods and Public Data","shortLabel":"Methods and Public Data","description":"What can current public records establish, where do measurement boundaries stop, and which disclosures would make antitrust research more accountable?","href":"/research/topics/methods-public-data","metricLabel":"Publication memberships","metricValue":"3","detail":"AR-T07 / 2 issue programs / 5 evidence lanes","status":"institutional research topic","year":2026,"color":"#ea580c","searchText":"ar-t07 methods and public data methods what can current public records establish, where do measurement boundaries stop, and which disclosures would make antitrust research more accountable? document definitions, denominators, source construction, release clocks, reproducibility paths, and evidence gaps as first-class research outputs. a documented data gap is not evidence of competition or harm. screening thresholds are not legal conclusions, and reproducibility does not make unlike measures comparable. stable identifiers, machine-readable firm shares and ownership, local boundaries, historical revisions, disclosure status, methods documentation, and durable public apis. data publishers, analysts, students, reporters, agencies, and legislators ar-mm-2026-01 how hhi helps explain market concentration ar-dn-2026-01 where public market-share data runs out ar-dn-2026-02 housing competition needs 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