In Indiana's HSA, the state deposits $2,750 per year into an account controlled by the employee, out of which he pays all his health bills. Indiana covers the premium for the plan. The intent is that participants will become more cost-conscious and careful about overpayment or overutilization.

Unused funds in the account--to date some $30 million or about $2,000 per employee and growing fast--are the worker's permanent property. For the very small number of employees (about 6% last year) who use their entire account balance, the state shares further health costs up to an out-of-pocket maximum of $8,000, after which the employee is completely protected.

...

Most important, we are seeing significant changes in behavior, and consequently lower total costs. In 2009, for example, state workers with the HSA visited emergency rooms and physicians 67% less frequently than co-workers with traditional health care. They were much more likely to use generic drugs than those enrolled in the conventional plan, resulting in an average lower cost per prescription of $18. They were admitted to hospitals less than half as frequently as their colleagues. Differences in health status between the groups account for part of this disparity, but consumer decision-making is, we've found, also a major factor.

...

It turns out that, when someone is spending his own money alone for routine expenses, he is far more likely to ask the questions he would ask if purchasing any other good or service: "Is there a generic version of that drug?" "Didn't I take that same test just recently?" "Where can I get the colonoscopy at the best price?"

...

Americans can make sound, thrifty decisions about their own health. If national policy trusted and encouraged them to do so, our skyrocketing health-care costs would decelerate.

via Mitch Daniels: Hoosiers and Health Savings Accounts - WSJ.com.