Analysts, however, were particularly concerned by an unexpected increase in Cigna's medical costs.

Any unexpected increase in the inflation rate would decrease the real interest rate.

At current levels, hospitals have almost no ability to handle an unexpected increase in patients.

And his announcement today would speed up that plan, again due to unexpected increases in state tax receipts.

The government is finding itself with new and, in some cases, unexpected increases in health care costs.

However, people can respond to an unexpected increase in wealth that they think will be permanent by spending more of their current income.

But they could also be the product of unexpected increases in the Medicaid caseload.

The company's revival was driven by a sharp and unexpected increase in sales.

But analysts were concerned by an unexpected increase in Cigna's medical costs.

The latest increase, officials said, reflected unexpected increases in spending that will carry from this fiscal year into the next.