We study the public goods problem associated with vaccinations. The externality created by an infection is composed of two parts, the probability of infection and the marginal infections generated if infected. We argue that the key component in a successful vaccination strategy is the second of...

We develop an agent-based computational model for the spatial spread of an epi- demic to explore how the inter-regional variability in vaccine coverage a§ects the global epidemic size as well as the individual risk of infection. Our agent-based model imple- ments a standard SIR model of...