Typically, health insurance premiums depend at least in part on the previous costs of the insuring firm, a factor termed 'experience rating'. This link between health status and future premiums raises concerns of market failure, since it limits the ability of firms to insure the price at which...

The introduction of Medicare in 1965 was the single largest change in health insurance coverage in U.S. history. Many economists and commentators have conjectured that the introduction of Medicare may have also been an important impetus for the development of new drugs that are now commonly used...

This paper examines why health insurance coverage fell despite the lengthy economic boom of the 1990s. I show that insurance coverage declined primarily because fewer workers took up coverage when offered it, not because fewer workers were offered insurance or were eligible for it. The reduction...

We analyze the incidence of public-employee health benefits. Because these benefits are negotiated through the political process, relevant labor market institutions deviate significantly from the competitive, private-sector benchmark. Empirically, we find that roughly 15 percent of the cost of...

This article describes the anatomy of health insurance. It begins by considering the optimal design of health insurance policies. Such policies must make tradeoffs appropriately between risk sharing on the one hand and agency problems such as moral hazard (the incentive of people to seek more...

This study assesses the factors influencing the movement of people across health plans. We distinguish three types of cost-related transitions: adverse selection, the movement of the less healthy to more generous plans; adverse retention, the tendency for people to stay where they are when they...

This paper uses data on health insurance choices by employees of Harvard University to examine the effect of alternative pricing rules on market equilibrium. In the mid-1990s, Harvard moved from a system of subsidizing more expensive insurance to a system of contributing an equal amount to each...

Typically, health insurance premiums depend at least in part on the previous costs of the insuring firm, a factor termed 'experience rating'. This link between health status and future premiums raises concerns of market failure, since it limits the ability of firms to insure the price at which...

In the United States, two patients with the same medical condition can receive drastically different treatments. In addition, the same patient can walk into two physicians’ offices and receive equally disparate treatments. This chapter attempts to understand why. It focuses on three areas: the...

The introduction of Medicare in 1965 was the single largest change in health insurance coverage in U.S. history. Many economists and commentators have conjectured that the introduction of Medicare may have also been an important impetus for the development of new drugs that are now commonly used...