Context risk
Market Structure Context
Market structure context that influences pricing power and carrier behavior. This page explains the public signals behind market structure context and how they tend to show up in claims and pricing pressure in Michigan.
State signal
28
/ 100
Market structure signals show rate filing activity is below the national distribution, market concentration is near the national midpoint.
Metric scores
Sources
Public, regulator-grade inputs used for this risk.
- SERFF
- NAIC market share data
Signals tracked
What we measure for this risk
Rate filing cadence
Filing volume and carrier activity for Michigan.
Filings per carrier: 12.45
Total filings: 249
Active carriers: 20
Coverage: Observed. Source: SERFF Filing Access (Auto product search; NAIC Market Share Report (Total Private Passenger Auto by state).
Market concentration baseline
Pricing power context based on carrier share mix.
HHI concentration index: 1560.20
Top 5 carrier share: 76.36%
Signals are currently state-level. County views inherit state baselines.
Core signals
Primary public inputs that define market structure in Michigan.
Rate filing frequency
70%Auto filing volume per carrier and filing cadence.
Sources: SERFF
Market concentration
30%HHI concentration score and top-five share.
Sources: NAIC market share data
Additional signals
Supplemental market context signals added as coverage expands.
Additional signals will appear as data coverage expands.
Why market structure matters
Market structure describes carrier competition and pricing dynamics in a state.
- Concentrated markets can limit pricing competition and choice.
- High filing activity signals active pricing pressure.
- Carrier mix influences availability and volatility.