Concerns about the health of poor children and mothers produced major changes in the Medicaid public insurance program during the last decade, including expansions in program eligibility and increases in fees paid to physicians who care for covered patients. We examine physician responses to...

Managed care may influence technology diffusion in health care. This article empirically examines the relationship between HMO market share and the diffusion of neonatal intensive care units. Higher HMO market share is associated with slower adoption of mid-level units, but not with adoption of...

The growth of managed care has prompted numerous questions about its impact on the quality of health care. This paper reviews evidence on the impacts of managed care on quality. Most comparisons of care for patients in different plans within similar markets suggests that there is little...

Managed care activity may alter the incentives associated with the acquisition and use of new medical technologies, with potentially important implications for health care costs, patient care, and outcomes. This paper discusses mechanisms by which managed care could influence the adoption of new...

The challenges consumers face in acquiring and using information are a defining feature of health care markets. In this paper, we examine demand for health information on the Internet. We find that individuals in poor health are more likely than those in better health to use the Internet to...

We investigate the effect of managed care on the health care system, focusing on the effects managed care could have on the number and types of health care providers and their efficiency. By influencing providers, managed care may change the structure and performance of the entire health care...

Many questions about technology growth and development in health care call for a broad-based characterization of technology availability. In this paper, we explore the possibility of producing aggregated estimates of technology availability by constructing an index of technology availability in...

We discuss the effects of managed care on the structure of the health care delivery system, focusing on managed-care-induced consolidation among health care providers. We empirically investigate the relationship between HMO market share and mammography providers. We find evidence of...