Open research infrastructure
Research Notebook Lab
Reproduce the published analyses with downloadable Python notebooks, public inputs, and validation checks. Each notebook records its sources and interpretation limits.
Notebook execution route
Broadband geography: public rows become reviewable code2020-12 from Federal Communications Commission- Notebooks
- 7
- executable packets
- API routes
- 14
- public JSON inputs
- Default rows
- 2,193
- bounded observations
- Artifacts
- .ipynb
- downloadable source
Reproduce the analysis, not a conclusion.Each notebook keeps its declared dataset, entity universe, period, source custody, and interpretation boundary. Recipes never combine unlike metrics into a composite market-power score.
Download active notebookFCC broadband HHI / 36 rows / Python 3
Fixed broadband concentration by geographic scale
How did national and median state, county, and census-tract HHI move across the FCC's nine fixed-broadband reporting periods?- Default rows
- 36
- 36 rows / 9 periods / 4 scopes
- Code cells
- 7
- parameterized + bounded
- Source review
- Jul 21, 2026
- Federal Communications Commission
- Output
- Scatter
- Four-scale concentration history
Executed result contract
Four-scale concentration history
InputFCC broadband HHI / 36 rows
Validate6 assertions
Analyze2020-12
Publish.ipynb + figure
Parameter ledger
Defaults remain editable in the notebook- Reporting periods
- Dec 2020-Dec 2024 / 9 semiannual anchors
- Geographic summaries
- Nation + state, county, and tract medians
- Connection tier
- Residential fixed 100/20 Mbps or faster
Research handoff
From public rows to reviewable evidence.
Every notebook keeps the endpoint grammar visible, checks the fields it consumes, produces one bounded figure, and routes the result back to live profiles and methods.
Open public briefings