Today, nearly everyone agrees that America’s health care delivery system is badly in need of reform. Its problems are manifold. First and foremost, it is too expensive. As a share of Gross Domestic Product (GDP)and on a per capita basis, America’s health costs greatly exceed those of other nations. Yet we, the American people, are not getting our money’s worth; despite the expenditure of more than 14 percent of GDP our nation’s public-health statistics compare unfavorably with nations that spend far less?