Federal payments required by President Barack Obama’s health care law are being understated by as much as $50 billion per year because official budget forecasts ignore the cost of insuring many employees’ spouses and children, according to a new analysis. The result could cost the U.S. Treasury hundreds of billions of dollars during the first ten years of the new health care law’s implementation.

“The Congressional Budget Office has never done a cost-estimate of this [because] they were expressly told to do their modeling on single [person] coverage,” said Richard Burkhauser in a telephone interview Monday. Burkhauser is an economist who teaches in Cornell University’s department of policy analysis and management. On Monday the National Bureau of Economic Research published a working paper on the subject that Burkhauser co-authored with colleagues from Cornell and Indiana University…

“This is a very important paper,” Heritage Foundation health care expert Paul Winfree told TheDC. These hidden costs, he said, “will almost certainly add to the deficit, contrary to what the Congressional Budget Office and others have estimated.”

That’s especially important, Winfree added, because Congress’s 12-member “super committee” is about to draft another round of cuts to 10-year spending plans.