More than half of consumers will choose health-care plan that costs too much, study predicts

Tens of millions of consumers are expected to sign up for healthcare via the new health insurance exchanges set up by the federal and state governments. Using simulated exchanges modeled on the design of the actual exchanges, alarming new research suggests that more than 80 percent of consumers may be unable to make a clear-eyed estimate of their needs and will unknowingly choose a higher cost plan than needed.