Economic observatory / longitudinal evidence
Market trend observatory
Follow published concentration measures over time. Every point retains its market definition, period, source, and the limits of comparison with other observations.
Selected evidence route
Fixed broadband / HHI- Series
- 5 anchors2020-2024
- Sources
- 1 recordFederal Communications Commission
- Context
- 0 recordsofficial context
Public anchor horizon
Where bounded market histories exist
line = same measure
- Public anchors
- 653 bounded measures
- Observed markets
- 102 definitions awaiting measures
- Comparable histories
- 71980-2026
- Official records
- 1410 source records
Configurable longitudinal evidence
Build an anchor series
Choose the measure, market definitions, evidence window, and transformation. Every plotted point remains tied to its public source.
Selected
1
of 5 maximum
Published
1
markets with anchors
Plotted
1
definition-eligible
Anchors
5
2020-2024
Sources
1
unique records
Events
0
context shown
Market definitions
Select up to five
Evidence window
No HHI anchor was released inside 2020-2024.
Dashed segments connect public anchors for legibility; they do not estimate missing years. Event lines provide timing context only and do not identify causal effects.
Active definition
Fixed broadband
Telecommunications / United States / separately reported state, county, and census-tract summaries
Measurement basis
FCC source-reported provider-share HHI for qualifying residential fixed connections
Cross-market posture
screen only
The national HHI and medians of separately calculated state, county, and census-tract HHIs describe different geographic summaries. The source does not publish provider shares in this release, and none of these rows by itself establishes a legal product or geographic market.
Anchor rule
No annual values are filled, carried forward, or interpolated. Index and change modes re-express only the published anchors inside the chosen window.
Definition rule
Product boundaries, geographies, denominators, and metric families remain distinct. Screens are not merged into a synthetic economy-wide finding.
Policy context
Official records in the selected window
Research workflow