The baby boom generation's entry into old age has led to an unprecedented increase in the elderly population. The social and economic effects of this shift are significant, and in Research Findings in the Economics of Aging, a group of leading researchers takes an eclectic view of the subject....

Economic theory suggests that, when designing aid programs, ordeal mechanisms that impose differential costs for rich and poor can induce self-selection and hence improve targeting ("self-targeting"). We first re-examine this theory and show that ordeal mechanisms may actually have theoretically...