The Tragedy of the Commons in Global Health: Each Nation Optimizes Locally, All Suffer Globally
Problem Definition
Global health is a public good that cannot be produced through unilateral national action. A pandemic that starts in one country will infect all others unless all countries coordinate detection, response, and vaccination. Yet each country has incentives to minimize its own health spending while free-riding on others' disease containment efforts.
The result is chronic underfunding of surveillance, pandemic preparedness, and vaccine development — leaving the world perpetually vulnerable to the next epidemic. COVID-19 cost the global economy $15 trillion; a better-coordinated response would have cost 1/10th that amount. Yet health policy remains stubbornly nationalistic.
Root Causes
Health systems are organized at national level but disease threats are transnational
Each government optimizes for domestic constituents without accounting for international spillover harms
No binding international enforcement mechanism requires countries to maintain pandemic preparedness or share disease data
Vaccine and therapeutic R&D is driven by wealthy-country market demand, leaving tropical diseases and pandemic preparedness underfunded
Mistrust and geopolitical competition prevent data sharing on disease outbreaks until too late