{"license":"https://creativecommons.org/licenses/by/4.0/","dataset":"research-agenda","count":1,"updatedThrough":"2026-07-21","summary":{"decreasedCount":0,"domainCount":1,"entityCount":1,"increasedCount":1,"latestSourceAccessDate":"2026-07-18","methodCount":1,"questionCount":1,"requestCount":4,"sourceCount":2,"unchangedCount":0},"universeSummary":{"decreasedCount":26,"domainCount":5,"entityCount":32,"increasedCount":19,"latestSourceAccessDate":"2026-07-21","methodCount":7,"questionCount":46,"requestCount":184,"sourceCount":12,"unchangedCount":1},"guardrail":"Agenda questions are derived from published latest-to-prior competition signals and remain attached to their exact metric, periods, universe, and source custody. They are not ranked, scored, or treated as findings of causality, competitive harm, liability, enforcement merit, or research importance. Evidence requests describe work to collect, not evidence already established.","filters":{"direction":"all","directionMatched":true,"domain":"all","domainMatched":true,"method":"all","methodMatched":true,"query":"","question":"industry-median-hhi:53","questionMatched":true,"view":"question","viewMatched":true,"scope":"question","scopeMatched":true},"activeQuestionId":"industry-median-hhi:53","methods":[{"id":"market-mechanism","label":"Market mechanism","shortLabel":"Mechanism","detail":"Test entry, exit, switching, price, quality, capacity, and share pathways inside the declared market boundary.","metricIds":["market-hhi"],"color":"#12a8b5"},{"id":"share-accounting","label":"Share accounting","shortLabel":"Shares","detail":"Reconstruct participant-share movement while checking denominator, coverage, entry, exit, and transaction changes.","metricIds":["market-cr4","market-leader-share"],"color":"#1769e0"},{"id":"industry-disaggregation","label":"Industry disaggregation","shortLabel":"Industries","detail":"Trace a sector median back to strict six-digit Census rows before proposing a product or geographic market study.","metricIds":["industry-median-hhi"],"color":"#24a76f"},{"id":"geographic-structure","label":"Geographic structure","shortLabel":"Geography","detail":"Reconcile national and nested geographic concentration summaries with area-level distributions, provider or ownership paths, measurement boundaries, and local-market evidence.","metricIds":["state-bank-median-hhi","national-bank-deposit-hhi","fixed-broadband-hhi"],"color":"#0f766e"},{"id":"business-flow-context","label":"Business-flow context","shortLabel":"Business flows","detail":"Disaggregate national entry, exit, job-flow, and reallocation movement by sector, place, and firm age before proposing a competitive mechanism.","metricIds":["establishment-entry-rate","establishment-exit-rate","job-creation-rate","job-destruction-rate","net-job-creation-rate","reallocation-rate"],"color":"#6b5bd6"},{"id":"merger-program-context","label":"Merger program context","shortLabel":"Filings","detail":"Place HSR notification volume beside filing mix, transaction size, thresholds, exemptions, and macroeconomic context.","metricIds":["hsr-transactions"],"color":"#f39b22"},{"id":"review-process-context","label":"Review process context","shortLabel":"Review","detail":"Test whether transaction mix, clearance, adjusted denominators, or agency practice moved alongside the review rate.","metricIds":["hsr-second-request-rate"],"color":"#eb4a64"}],"rows":[{"id":"industry-median-hhi:53","ordinal":25,"question":"Which six-digit industries drive the sector shift, and where do product, geography, entry, conduct, price, quality, or enforcement records justify deeper market-level research?","methodId":"industry-disaggregation","methodLabel":"Industry disaggregation","methodDetail":"Trace a sector median back to strict six-digit Census rows before proposing a product or geographic market study.","evidenceRequests":["Strict-match six-digit rows contributing to the 2017 and 2022 sector medians.","Classification, disclosure, and publication-status checks for rows outside the paired universe.","Revenue, employment, firm-count, and establishment context for the largest row movements.","Product, geography, entry, conduct, price, quality, and enforcement records for candidate market studies."],"domain":"industries","domainLabel":"Census industries","entityId":"naics-sector-53","entityCode":"53","entityLabel":"Real estate and rental and leasing","metricId":"industry-median-hhi","metricLabel":"Median detailed-industry HHI","unit":"hhi_points","priorPeriod":"2017","priorYear":2017,"priorValue":93.2,"latestPeriod":"2022","latestYear":2022,"latestValue":103.8,"yearsBetween":5,"delta":10.6,"deltaPercent":11.4,"direction":"increased","observation":"Real estate and rental and leasing moved from a paired-universe median HHI of 93.2 in 2017 to 103.8 in 2022 (+10.6 HHI points).","interpretation":"The 2022 median is higher than the 2017 median across the same published strict-match screen. Sector medians are orientation statistics, not sector HHI values or legal market findings.","comparisonNote":"Difference between the 2017 and 2022 medians for the same strict six-digit matched universe; this is not the median of row-level changes.","evidenceCount":16,"evidenceLabel":"16/24 strict six-digit pairs / 66.7% coverage","confidenceLevel":"high","dataStatus":"verified","sourceCount":2,"sourceIds":["census-ecnsize-concentration-2017","census-ecnsize-concentration-2022"],"publishers":["U.S. Census Bureau"],"latestSourceAccessDate":"2026-07-18","agendaHref":"/research/agenda?question=industry-median-hhi%3A53#research-agenda-observatory","atlasHref":"/atlas?focus=question%3Aindustry-median-hhi%3A53&layer=research","researchProfileHref":"/research/agenda/industry-median-hhi--53","monitorHref":"/economy/monitor?signal=industry-median-hhi%3A53#competition-monitor-console","notebookHref":null,"briefingHref":"/research/briefing?signals=industry-median-hhi%3A53&audience=research#competition-briefing-studio","profileHref":"/industries/53","explorerHref":"/trends/industries?sector=53#industry-history-workbench","signalGuardrail":"Sector rows summarize strict six-digit NAICS matches. Their medians are not sector HHI values, legal antitrust markets, liability findings, or causal estimates. Vintage medians and the median of row-level changes are distinct distribution statistics and need not reconcile. Publication coverage varies by metric, and revenue changes are nominal.","agendaGuardrail":"Agenda questions are derived from published latest-to-prior competition signals and remain attached to their exact metric, periods, universe, and source custody. They are not ranked, scored, or treated as findings of causality, competitive harm, liability, enforcement merit, or research importance. Evidence requests describe work to collect, not evidence already established."}]}