The new world of managed care: creating organized delivery systems.

In response to managed care pressures and imminent legislative reforms, provider organizations across the United States are coming together to form organized or integrated delivery systems. This paper describes various approaches to developing such systems and, drawing on ongoing research, examines what is known about the performance of such systems, the barriers they face, and the key factors likely to be associated with their success. The paper also addresses important policy questions related to the extent to which organized delivery systems should be actively encouraged by health reform legislation and how such systems should be held accountable.