The assumption of rational choice helps in understanding how people respond to infectious diseases. People maximize their well-being by choosing levels of prevention and therapy subject to the constraints they face. Objectives and constraints are numerous, necessitating tradeoffs. For example,...

We argue that the academic literature, both qualitative and quantitative, has mislabeled most episodes of large-scale violence in Africa as civil wars; these episodes better fit our concept of regional war complexes. Our paper seeks to highlight the fundamental flaws in the conception of civil...

Testing is a potentially important intervention to slow the HIV epidemic in Africa and elsewhere. Some countries in Africa have achieved high levels of testing but most have not. Cost, price, and questions of confidentiality have limited the expansion of testing. It looks possible, however, that...