Mitt Romney. (Evan Vucci, The Associated Press)

A University of Colorado analysis that relies on economic data predicts Republican candidate Mitt Romney will win the presidency, picking up Colorado and all but three of 13 swing states.

The research paper raised eyebrows with one Colorado pollster, as well as a nationally known political statistician, who questioned the data.

The analysis, done by CU political scientists Ken Bickers and Michael Berry, uses unemployment data and changes in personal income in states to conclude that Romney has a 77 percent chance of victory, with the presumptive GOP nominee winning Colorado with 51.8 percent of the vote.

"Putting these pieces together, clearly President (Barack) Obama is in electoral trouble," the analysis argues, saying that while the Democrat has the incumbency advantage, the "fragile economy" hurts him.