Managed care organizations often cannot be easily differentiated on the basis of organizational characteristics. Even the provider networks that competing health plans use may be virtually identical in response to employee pressure for broad provider choice. In markets with many undifferentiated networks, current approaches to quality improvement may be more intrusive than helpful. Health plans should delegate quality improvement activities to constituent provider groups and need to explore collaborative approaches to quality improvement. Although many are uncomfortable with using financial incentives to influence professional behavior, the use of capitation to restrain costs is inevitable. Instead of arbitrarily limiting financial incentives, consumers should be protected in market-compatible ways. In particular, expansive disclosure requirements and risk adjustment of both premiums and capitation payments are recommended as approaches that will reward highquality care.T HE LOGIC OF MANAGED competition suggests that within each health care market, networks with different and distinct organizational characteristics and internal cultures will form and compete, initially on price and style of care and later on quality and value. Individual consumers will be able to recognize the differences among plans and make plan selections based on their own assessment of comparative value. Assuming competition based on clear-cut organizational differentiation at the health plan and delivery system levels, some have envisioned competition even over standards of care.
1Health care markets have not evolved that way. The structures of most markets do not encourage consumer choice because of the paucity of employer-based purchasing coalitions, the lack of standardized benefit packages, and the relative lack of financial incentives to encourage value purchasing. It appears that, at least for now, purchasers' success in forcing premiums down through direct bargaining has obviated the need for enrollee incentives to choose lower-cost plans. Risk-adjusted premiums and capitation rates are not being used to reward plans and providers who care for sicker patients. Quality measurement remains in an early, developmental stage. Tight partnerships between health plans and providers have not emerged. Indeed, it appears that vertically integrated systems are dissolving into their constituent parts, and that "virtually" integrated organizations and lack of exclusivity have proved more flexible and efficient for plan and provider managers and more attractive to the market.
3Although markets have not evolved as envisioned or desired, some public-and privatesector activities in quality improvement and consumer protection still assume a managed competition framework.