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it does not turn an observed change into causation, harm, market power, or a legal conclusion."},{"id":"question-indicator:market-hhi:us-search-engine-usage:market-hhi","layer":"research","relationshipType":"question_indicator","relationshipLabel":"Named measurement family","fromId":"question:market-hhi:us-search-engine-usage","fromKind":"question","fromLabel":"Which entry, exit, share, switching, price, quality, or capacity evidence can explain the movement inside this exact market boundary?","fromHref":"/research/agenda/market-hhi--us-search-engine-usage","toId":"indicator:market-hhi","toKind":"indicator","toLabel":"Tracked market HHI","toHref":"/indicators/market-hhi","evidenceLabel":"Research agenda metric contract","evidenceDetail":"Q39 is framed by Herfindahl-Hirschman Index and resolves to the canonical market-hhi indicator dossier.","sourceId":null,"sourceUrl":null,"confidenceLevel":"bounded","indicatorId":null,"entityCode":null,"observationCount":null,"firstYear":null,"latestYear":null,"preferredView":null,"sourceIds":null,"guardrail":"A question-indicator link records the named measurement family used to frame a public question; 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