As an empirical example of this externality, we analyze the innovation induced by the obesity epidemic. Obesity is associated with an increase in the incidence of many diseases. The induced innovation hypothesis is that an increase in the incidence of a disease will increase technological...

Basic economic theory suggests that health insurance coverage may cause a reduction in prevention activities, but empirical studies have yet to provide much evidence to support this prediction. However, in other insurance contexts that involve adverse health events, evidence of ex ante moral...

Theoretical models predict asymmetric information in health insurance markets may generate inefficient outcomes due to adverse selection and moral hazard. However, previous empirical research has found it difficult to disentangle adverse selection from moral hazard in health care. We empirically...

Nursing home expenditures are a rapidly growing share of national health care spending with the government functioning as the dominant payer of services. Public insurance for nursing home care is tightly targeted on income and assets, which imposes a major tax on savings; moreover, low state...

We explore the feasibility of catastrophic health insurance established in conjunction with individual health accounts (IHAs). Under this plan, the employer establishes both a high-deductible health insurance plan and an IHA. Employee health care costs below the deductible are then paid out of...

We describe research on the impact of health insurance on healthcare spending ("moral hazard"), and use this context to illustrate the value of and important complementarities between different empirical approaches. One common approach is to emphasize a credible research design; we review...

In many countries, social security insures firms against their workers' sickness absences. The insurance may create a moral hazard for firms, leading to inefficient monitoring of absences or to an underinvestment in the prevention of absences. We exploit an administrative threshold in the...

When physicians own complementary medical service facilities such as clinical laboratories and imaging centers, they gain financially by referring patients to these service entities. This situation creates an incentive for the physician to exploit the consumers' trust by recommending more...

The U.S. healthcare system requires substantial out-of-pocket payments by most consumers, which can prevent some from receiving needed medical services. Recent policy proposals seek to address this problem by increasing government health care spending in order to reduce out-of-pocket costs. The...