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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":"issue:housing-access","kind":"issue","label":"Housing access and local power","shortLabel":"Housing access","description":"Which local ownership, pricing, supply, and platform records can identify where renters face weakened competitive choice?","href":"/issues/housing-access-and-local-power","metricLabel":"Bounded markets","metricValue":"1","detail":"1 separately defined market / editorial research program","status":"issue program","year":2026,"color":"#c026d3","searchText":"housing access and local power housing access ownership, pricing systems, supply, and place the program joins national housing-access evidence to selected ownership and official-record context while keeping the underlying competition problem local. which local ownership, pricing, supply, and platform records can identify where renters face weakened competitive choice? where can parcel, owner, property-manager, rent, vacancy, and transaction data be joined at a stable local geography? how should pricing-software use, information exchange, ownership concentration, and supply constraints be measured separately? which local comparisons can test entry, rent, quality, and displacement outcomes without treating co-movement as causation? u.s. rental housing access rental housing real estate","connectionCount":4}],"connectorNodes":[],"pairs":[{"id":"topic:geographic-competition--issue:housing-access","leftId":"topic:geographic-competition","leftLabel":"Geographic Competition","rightId":"issue:housing-access","rightLabel":"Housing access and local power","status":"direct","directEdgeCount":1,"shortestHopCount":1,"alternativeShortestPathCount":0,"primaryPathNodeIds":["topic:geographic-competition","issue:housing-access"],"primaryPathEdgeIds":["topic-issue:geographic-competition:housing-access"]}],"sources":[],"rows":[{"id":"topic-issue:geographic-competition:housing-access","layer":"research","relationshipType":"topic_issue","relationshipLabel":"Declared issue-program membership","fromId":"topic:geographic-competition","fromKind":"topic","fromLabel":"Geographic Competition","fromHref":"/research/topics/geographic-competition","toId":"issue:housing-access","toKind":"issue","toLabel":"Housing access and local power","toHref":"/issues/housing-access-and-local-power","evidenceLabel":"Research topic issue contract","evidenceDetail":"Housing access and local power is explicitly included in the Geographic Competition institutional research contract.","sourceId":null,"sourceUrl":null,"confidenceLevel":"bounded","indicatorId":null,"entityCode":null,"observationCount":null,"firstYear":null,"latestYear":null,"preferredView":null,"sourceIds":null,"guardrail":"A topic-to-issue link records one declared institutional membership. 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