Research questions prompted by observed changes in competition data. Each question identifies an empirical approach, evidence needs, and what current observations cannot establish.
Question field / domain × method
Where the public research program is concentrated46 source-custodied questions across 5 evidence systems and 7 declared methods.
Research questions
46
signal-derived
Declared methods
7
metric-specific
Source records
12
current custody
Evidence requests
184
work to collect
Observed signalExact metric, anchors, interval, unit, and universe remain attached.
Bounded questionThe monitor question is preserved verbatim and never converted into a verdict.
Evidence requestDeclared collection work is separated from evidence already in custody.
Move from an observed change to a testable research program
Questions stay in published signal order. Methods and evidence requests are declared; no priority score is calculated.
Questions shown
46
of 46 published
Entities
32
exact signal subjects
Methods
7
of 7 declared
Source records
12
unique custody rows
Evidence requests
184
work items, not findings
Published questions46 / 46
Q15 / Census industriesIndustry disaggregation
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?
Arts, entertainment, and recreation / Median detailed-industry HHI
2017132.2
-18.55 years
2022113.7
Observed signal
Arts, entertainment, and recreation moved from a paired-universe median HHI of 132.2 in 2017 to 113.7 in 2022 (-18.5 HHI points).Difference between the 2017 and 2022 medians for the same strict six-digit matched universe; this is not the median of row-level changes.
Bounded interpretation
The 2022 median is lower than the 2017 median across the same published strict-match screen. Sector medians are orientation statistics, not sector HHI values or legal market findings.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.Empirical trackIndustry disaggregation
Trace a sector median back to strict six-digit Census rows before proposing a product or geographic market study.
Evidence base
14/25 strict six-digit pairs / 56.0% coverage
Status
verified / high confidence
Declared empirical tracks
7 methods, each tied to a published metric family
The method register makes the work program inspectable while leaving research importance and enforcement merit unranked.
01Market mechanism
Test entry, exit, switching, price, quality, capacity, and share pathways inside the declared market boundary.
6 questions / market-hhi
02Share accounting
Reconstruct participant-share movement while checking denominator, coverage, entry, exit, and transaction changes.
9 questions / market-cr4, market-leader-share
03Industry disaggregation
Trace a sector median back to strict six-digit Census rows before proposing a product or geographic market study.
17 questions / industry-median-hhi
04Geographic structure
Reconcile national and nested geographic concentration summaries with area-level distributions, provider or ownership paths, measurement boundaries, and local-market evidence.