The U.S. health care system is in crisis. At stake are the quality of care for millions of Americans and the financial well-being of individuals and employers squeezed by skyrocketing premiums--not to mention the stability of state and federal government budgets.

In Redefining Health Care, internationally renowned strategy expert Michael Porter and innovation expert Elizabeth Teisberg reveal the underlying--and largely overlooked--causes of the problem, and provide a powerful prescription for change.

The authors argue that competition currently takes place at the wrong level--among...