Food Safety as a Public Good

Why food safety cannot be left entirely to markets, how food regulators work, and the economic costs of foodborne illness.

When you buy food, you usually cannot tell whether it is contaminated with harmful bacteria, chemicals or adulterants. This is a classic case of asymmetric information: sellers know more than buyers. It is one reason governments regulate food safety.

The cost of unsafe food

The World Health Organization estimates that unsafe food causes around 600 million cases of foodborne illness and 420,000 deaths worldwide each year. Children under five bear a large share of the burden. A World Bank study estimated that unsafe food costs low- and middle-income countries around 110 billion dollars a year in lost productivity and medical expenses.

Why markets alone fall short

Hidden quality: buyers cannot see contamination.
Delayed effects: illness may appear hours or days later, making it hard to trace to a seller.
Externalities: some foodborne diseases spread from person to person, harming others.
Weak incentives: small or anonymous sellers may have little reputation to protect.

How regulation works

Governments set standards for food handling, labelling and additives, inspect producers, test samples and recall unsafe products. In India, the Food Safety and Standards Authority of India, or FSSAI, was established under the Food Safety and Standards Act of 2006. It sets standards, licenses food businesses and runs testing and awareness programmes such as “Eat Right India”.

Adulteration

In some markets, adulteration, adding cheaper substances to food, is a major concern. Examples include watered-down milk, coloured spices and synthetic substances in sweets. Studies and surveys by regulators in several countries have found adulteration in samples of milk, spices and oils, harming health and cheating consumers.

The 2008 melamine scandal

In 2008, it emerged that some Chinese dairy companies had added melamine, an industrial chemical, to milk and infant formula to make it appear higher in protein. Hundreds of thousands of infants fell ill and several died. The scandal destroyed trust in Chinese dairy brands, caused a surge in demand for imported formula, and led to tougher regulation. It showed how hidden quality problems can devastate both health and markets.

Balancing costs

Strict food safety rules can be costly for small producers and street vendors. Regulators try to balance safety with keeping food affordable and livelihoods viable, for example through training, simplified registration and focusing inspections on the highest risks.

Thinking food safety is only the seller's responsibility

Regulators, producers, transporters, sellers and consumers all play roles. Safe storage, clean water and proper cooking at home matter too. Food safety depends on the whole chain from farm to plate.

Key takeaways

Buyers cannot see food contamination, a case of asymmetric information.
Unsafe food causes around 600 million illnesses and 420,000 deaths a year, according to the WHO.
India's FSSAI, set up under a 2006 law, sets standards and licenses food businesses.
Regulation must balance safety with costs for small producers.