Public Insurance: Where Governments Already Nationalised Risk

Governments have already nationalised insurance — selectively, for exactly the risks where private markets fail. The pattern is consistent enough to be predictive. ## What the state takes **Universal and social risks**: retirement and disability (Social Security), health (Medicare and Medicaid in the US, national health systems across Europe), unemployment insurance. These are near-universal, involve adverse selection that only a mandate solves, and are treated as social entitlements. **Correlated catastrophic risks**: flood (the US National Flood Insurance Program), terrorism (the Terrorism Risk Insurance Act backstop), earthquake authorities, and state FAIR plans as insurers of last resort. These are exactly the risks private carriers cannot diversify — see Correlated Risk: The Failure Mode That Actually Kills Insurers. **Systemic financial risks**: bank deposits (FDIC), private pensions (PBGC), crop insurance. What remains private is auto, home and commercial property — lines where losses are largely independent, competition functions, and margins are thin. ## The two failure modes of public insurance **Political underpricing, paid for with debt.** The NFIP is the standing example: it owes over $22 billion to the US Treasury against a statutory borrowing limit of about $30 billion. Congress has repeatedly been reluctant to let flood premiums rise to actuarial levels, so the programme borrows instead. The second-order effect is worse than the debt — underpriced flood cover subsidises building in flood plains, increasing the exposure it then has to pay for. **Capture and raiding.** A public insurer holding large reserves is a visible pot of money. Public auto monopolies have been criticised on exactly these grounds — surpluses transferred into general government revenue, followed by politically-imposed rate caps and subsequent shortfalls. Both failures share a cause: **prices are not allowed to track risk**, because the price is politically visible in a way a private insurer's is not. ## The success case Switzerland's cantonal building insurance monopolies are cheaper than private cover, mandatory (which eliminates adverse selection), and fund substantial loss prevention out of premium income. See Loss Prevention and Risk Engineering: The Only Lever That Lowers the Cost Floor. The variable is therefore **not public versus private**. It is governance quality and whether prices are permitted to reflect risk. Disciplined and prevention-funded, public ownership can beat private. Politically underpriced or raided, it accumulates taxpayer liability. ## The honest framing Tax-funded universal insurance does deliver one genuine win: a mandate eliminates adverse selection outright. But "everyone wins" conceals that it is a **redistribution** — the careful owner of a low-risk house subsidises the beachfront property's hurricane exposure. That is a legitimate political choice and not a Pareto improvement, and the adverse-selection benefit can also be obtained with a simple purchase mandate without a state monopoly. See Risk-Based Pricing and the Adverse Selection Spiral.