Why Governments Provide Social Insurance

Why private markets often fail to provide insurance against unemployment, old age and illness, and why governments step in with social insurance.

Many governments run social insurance programmes: pensions, health insurance, unemployment insurance and disability benefits. Why not leave these to private markets?

Adverse selection

If insurance is voluntary, people who know they’re high risk are more likely to buy it. Insurers raise prices, low-risk people drop out, and prices rise further. The market can unravel. This is adverse selection.

Making insurance mandatory for everyone, as social insurance often does, keeps low-risk people in the pool and makes coverage affordable.

Risks markets can’t insure

Unemployment during recessions affects many people at once, making it hard for private insurers to diversify.
Inflation risk in pensions over decades.
Pre-existing conditions that private insurers may refuse.

Behavioural reasons

People often underestimate future needs, such as retirement savings. Compulsory programmes help counter present bias.

Redistribution

Social insurance often redistributes, giving more to lower-income people relative to contributions.

Costs and risks

Moral hazard: insurance can reduce incentives, such as searching for work.
Fiscal costs as populations age.
Administration.

India

India has formal social insurance, such as EPF, ESIC health insurance for workers and NPS, but most informal workers are outside it. Schemes like Ayushman Bharat, Atal Pension Yojana and e-Shram aim to widen coverage.

The unravelling market

A private insurer offers unemployment insurance. Mostly workers in unstable jobs sign up. Claims soar, premiums rise, and stable workers cancel. Soon the product disappears. A mandatory public scheme avoids this spiral.

Thinking private markets can always provide insurance

Adverse selection and correlated risks mean some insurance markets fail without government.

Key takeaways

Adverse selection can make voluntary insurance markets unravel.
Mandatory social insurance keeps low-risk people in the pool.
Some risks, like recessions and inflation, are hard for private insurers.
India's social insurance covers mostly formal workers, with efforts to widen coverage.