HIV continues to cause the largest number of disability-adjusted life years of any disease in HIV hyperendemic countries (i.e., countries with an adult HIV prevalence 15%). We compare the benefits and costs of two proven biological interventions to reduce the health losses due to the HIV...

We estimate the effect of an increase in time cost on the return behavior of blood donors. Using data from the Australia Red Cross Blood Service, we ask what happens when pro-social behavior becomes more costly. Exploiting a natural variation in which donor wait times are random, we use the...