A presidential election prediction model developed by two University of Colorado professors points to a big win for GOP presidential contender Mitt Romney in November.

The model, the only of its kind to use more than one state-level economic indicator, has correctly predicted the winner of every presidential election since 1980.

It predicts Romney winning the electoral college by a 320-218 margin and winning 52.9 percent of the popular vote when only the two major parties’ candidates are considered, the Associated Press reported Thursday.

Romney, it concluded, will win every state currently considered by pollsters to be a swing state, including Ohio, Pennsylvania, Wisconsin, Florida, Virginia, Colorado, New Hampshire and North Carolina