Most physicians today treat a variety of patients within their practices where a variety of
insurance arrangements co-exist. In this paper, we propose several theoretical explanations …

Background. One of the principal tenets of managed care is that physicians' clinical
decisions can be influenced both to improve the quality and consistency of care and to …

We evaluate the consequences for patients of being matched to a new primary care provider
due to practice closures. Using an event study and population-level data of patients and …

The effect of health plan membership on the utilization of health care services is of interest to
both consumers and policy makers. Often, estimation of that effect is difficult because data …

This paper examines factors associated with differences in managed care penetration
across geographic areas. Two alternative measures of managed care penetration are …

Abstract By 1993, over 70% of all Americans with health insurance were enrolled in some
form of managed care plan. The term managed care encompasses a diverse array of …

Primary care physicians (PCPs) provide frontline health care to patients in the US; however,
it is unclear how their practice styles affect patient care. In this paper, we estimate the long …

Objective. To determine the extent to which managed care has led to consolidation among
hospitals and physicians. Data Sources. We use data from the American Hospital …

STUDY QUESTIONS: What is the extent of variation in patterns of ambulatory care practice
across one state's Medicaid program once case mix is controlled for? How much of this …

This paper offers an explanation for the counterintuitive relationship between physician
competition and Medicaid participation found by many investigators. Contrary to standard …