Editing Openai/695d4253-5060-8005-95db-586e777927f4 (section)

=== Assistant:  ===
==== Key drivers of employee plan selection include: ====
* Employee premium contribution (payroll deduction) and perceived affordability.
* Expected out-of-pocket costs (deductible, copays/coinsurance, OOP max), especially given expected utilization.
* Risk preference / financial risk tolerance (preference for predictable copays vs high-deductible exposure).
* Health status and expected care needs (chronic conditions, planned procedures, Rx needs).
* Tax-advantaged features (e.g., HSA eligibility and employer HSA funding for CDHPs).
* Plan understanding / decision support (complexity, transparency tools).
* Family situation (single vs family tier; dependents’ expected use).
* Behavioral factors (status quo bias, inertia, prior-year satisfaction).

==== Given: ====
* Plan A premium = 400, expected MLR = 90% ⇒ expected claims at 100% morbidity = 400×0.90=360400 \times 0.90 = 360400×0.90=360
* Plan B premium = 600, expected MLR = 90% ⇒ expected claims at 100% morbidity = 600×0.90=540600 \times 0.90 = 540600×0.90=540
* Morbidity factors by risk group: 0.50, 0.60, 1.10, 1.20, 3.25

===== Plan A (50 employees): =====

mˉA=35(0.50)+10(0.60)+5(1.10)50=17.5+6.0+5.550=29.050=0.58\bar{m}_A=\frac{35(0.50)+10(0.60)+5(1.10)}{50}
=\frac{17.5+6.0+5.5}{50}=\frac{29.0}{50}=0.58mˉA=5035(0.50)+10(0.60)+5(1.10)=5017.5+6.0+5.5=5029.0=0.58
Plan B (50 employees):

mˉB=15(0.60)+5(1.10)+20(1.20)+10(3.25)50=9.0+5.5+24.0+32.550=71.050=1.42\bar{m}_B=\frac{15(0.60)+5(1.10)+20(1.20)+10(3.25)}{50}
=\frac{9.0+5.5+24.0+32.5}{50}=\frac{71.0}{50}=1.42mˉB=5015(0.60)+5(1.10)+20(1.20)+10(3.25)=509.0+5.5+24.0+32.5=5071.0=1.42
===== Plan A actual claims PEPM: 360×0.58=208.8360 \times 0.58 = 208.8360×0.58=208.8 =====
Plan A actual LR: 208.8/400=0.522208.8 / 400 = 0.522208.8/400=0.522

Plan B actual claims PEPM: 540×1.42=766.8540 \times 1.42 = 766.8540×1.42=766.8
Plan B actual LR: 766.8/600=1.278766.8 / 600 = 1.278766.8/600=1.278

===== Total premium (50 at 400, 50 at 600): =====

P=50(400)+50(600)=20,000+30,000=50,000P = 50(400)+50(600)=20{,}000+30{,}000=50{,}000P=50(400)+50(600)=20,000+30,000=50,000
Expected claims (90% MLR):

E=0.90×50,000=45,000E = 0.90 \times 50{,}000 = 45{,}000E=0.90×50,000=45,000
Actual claims:
* Plan A: 50×208.8=10,44050 \times 208.8 = 10{,}44050×208.8=10,440
* Plan B: 50×766.8=38,34050 \times 766.8 = 38{,}34050×766.8=38,340

A=10,440+38,340=48,780A = 10{,}440 + 38{,}340 = 48{,}780A=10,440+38,340=48,780
\textbf{A/E} = \frac{48{,}780}{45{,}000} = 1.084 \quad \Rightarrow \quad \textbf{108.4%}
(Equivalently, combined actual LR =48,780/50,000=97.56%=48{,}780/50{,}000=97.56\%=48,780/50,000=97.56%; A/E =97.56%/90%=108.4%=97.56\%/90\%=108.4\%=97.56%/90%=108.4%.)

==== If the universal rate change follows the account A/E, the indicated rate factor is 1.084 (an 8.4% increase). ====

New rates:
* Plan A: 400×1.084=433.60400 \times 1.084 = 433.60400×1.084=433.60
* Plan B: 600×1.084=650.40600 \times 1.084 = 650.40600×1.084=650.40

Employee contributions (rate − employer $400):
* Plan A: 433.60−400=33.60433.60 - 400 = 33.60433.60−400=33.60  (was 0)
* Plan B: 650.40−400=250.40650.40 - 400 = 250.40650.40−400=250.40 (was 200)

Illustration / implication: The employee price gap between B and A increases from $200 to $216.80, making Plan B relatively less attractive. Given Plan B already has much higher morbidity, this larger employee differential increases the likelihood that healthier employees move to Plan A and higher utilizers remain in Plan B, worsening selection (rate spiral risk).

==== Practical mitigations (any combination is acceptable): ====
# Differentiated rate actions by plan (experience-based pricing) - Increase Plan B more (it is severely underpriced at LR ~128%) and hold flat/decrease Plan A (LR ~52%) rather than a uniform increase. - Justification: reduces cross-subsidy that otherwise encourages healthy migration to A and leaves B underpriced.
# Change employer contribution strategy to preserve relative affordability - Contribute a percentage of premium (e.g., 80%) or contribute more to Plan B to keep employee differential stable. - Justification: reduces employee-driven anti-selection driven by payroll deduction differences.
# Implement enrollment/plan-switching controls - Limit mid-year moves; default mapping; active enrollment with decision support; minimum commitment period. - Justification: reduces opportunistic switching based on emerging claims.
# Adjust plan designs to reduce selection (if permitted) - Narrow the “buy-up” value gap (e.g., align deductibles/OOP features; add HSA seed funding to CDHP; or enhance value-based benefits in A). - Justification: lowers incentive for healthy/low utilizers to disproportionately choose one plan.

Any of the above directly targets the root issue: material morbidity sorting (A ~58% vs B ~142%) that a uniform rate change is likely to exacerbate.