insurance

Death Spiral

A vicious cycle in insurance where healthy individuals leave a risk pool due to rising premiums, causing costs to be spread among fewer, sicker members. This leads to even higher premiums, driving out more healthy members until the insurance plan becomes unsustainable.

Example

“The small group health plan entered a death spiral when several healthy employees left for cheaper coverage, leaving only high-cost members and causing premiums to skyrocket.”

Memory Tip

Think of a tornado spiraling downward - healthy people 'fly away' from high premiums, making the insurance 'storm' worse for those who remain.

Why It Matters

Understanding death spirals helps explain why insurance markets sometimes collapse and why regulations like guaranteed issue and individual mandates exist. It's crucial for anyone evaluating whether their insurance plan is stable long-term.

Common Misconception

Many people think death spirals only affect health insurance, but they can occur in any insurance market where healthier or lower-risk individuals can easily leave. Some also believe government intervention always prevents death spirals, but poorly designed regulations can actually accelerate them.

In Practice

A small employer group starts with 100 employees paying $400/month for health coverage. After claims rise, premiums increase to $550/month, causing 30 healthy employees to opt out. Now the remaining 70 members must cover the same costs, pushing premiums to $700/month. Another 25 healthy employees leave, forcing premiums to $900/month for the remaining 45 members, creating an unsustainable situation.

Etymology

The term combines 'death' (meaning the end or destruction) with 'spiral' (a continuous curve winding around a center), used metaphorically since the 1980s to describe this self-destructive insurance market phenomenon.

Common Misspellings

death sprialdeth spiraldeath spireldeath spiral

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