Healthcare in America: Shock treatment

The best-known objective of America's Affordable Care Act of 2010—commonly known as Obamacare—was to ensure that the 40m-plus Americans who lacked health insurance could get it. Less widely appreciated, but at least as important, are the incentives and penalties the law introduced to make the country's hideously expensive and poorly performing health services safer and more efficient. Economists are debating how much credit Obamacare should get for a recent moderation in the growth of health costs, and for a fall in the number of patients having to be readmitted to hospital. Whatever the answer, many companies see the disruption unleashed by the reforms as the business opportunity of a lifetime.