The classic theory of moral hazard concerns the insurance of a single good and predicts that co-insurance is larger when the elasticity of demand is higher and when small risks are insured. We extend this analysis to the insurance of multiple goods; for example, the simultaneous insurance of...

As health care costs continue to rise, medical expenses have become an increasingly important contributor to financial risk. Economic theory suggests that when background risk rises, individuals will reduce their exposure to other risks. This paper presents a test of this theory by examining the...

New medical technologies hold tremendous promise for improving population health, but they also raise concerns about exacerbating already large differences in health by socioeconomic status (SES). If effective treatments are more rapidly adopted by the better educated, SES health disparities may...

Many companies have defined-contribution benefit plans requiring employees to pay the full cost (before taxes) of more generous health insurance choices. Research has shown that employee decisions are quite responsive to these arrangements. What is less clear is how the total compensation...

Recent breakthroughs in the treatment of HIV have coincided with an increase in infection rates and an eventual slowing of reductions in HIV mortality. These trends may be causally related, if treatment improves the health and functional status of HIV+ individuals and allows them to engage in...

We construct and implement a test of rational consumer behavior in a highstakes financial market. In particular, we test whether consumers make systematic mistakes in perceiving their mortality risks. We implement this test using data from secondary life insurance markets where consumers with a...

As policymakers consider expanding insurance coverage for HIV+ individuals, it is useful to ask if insurance has any affect on health outcomes; and, if so, whether public insurance is as efficacious as private insurance in preventing premature deaths among HIV+ patients. Using data from a...

Better-educated people are healthier, but the magnitude of the relationship between health and education varies substantially across groups and over time. We undertake a theoretical and empirical study of how health disparities by education vary over time and across the population, according to...

A fair amount of research suggests that health has been improving among the elderly over the past 10 to 15 years. Comparatively little research effort, however, has been focused on analyzing disability among the young. In this paper, we argue that health among the young has been deteriorating,...