A one-page view of concentration across markets, where the evidence is missing, and which firms are connected. Use the underlying sources to investigate questions, not to infer a legal violation from a score.
1 markets·45 sources·0 HHI gaps
Observatory indexChoose the evidence universe
4 public domains
Research desk
Map concentration to public action
Position markets by HHI, sector, evidence depth, and the public-action questions they raise.
1in view1filters1sources
Refine market sliceSector, geography, concentration, vintage, status, and confidence1 active1 in view
Public interest triage
Where government should look next
Concentrated markets can turn everyday essentials into private chokepoints. This queue converts concentration screens into public action: publish missing data, investigate roll-ups, and test remedies.
Queue order uses the review category, latest sourced HHI, and visible trigger count. It does not estimate consumer harm or establish legal liability.
Question answeredWhich markets are in the current observatory slice?Layer answer1 markets, 1 sector memberships, 1 action signalsNext actionPick a row, then open the scoped packet.
Nodes 1Memberships 1Action 1
Node sizeSourced HHI anchor years (0-5)Node colorMarket sectorStatus dotConcern or data gapMuted nodesOutside active layerSector spokeObserved market membershipRouteSelected evidence to public ask
Public policy agenda
1 actionable · 1 market need review, monitoring, or disclosure before the public can call them fair.
Move this selected node across the observatory: full profile, source rows, machine-readable data, comparison lens, and public-action route stay attached to the same market.