Education. Republicans are significantly more likely than Democrats to have 4-year college degrees. The trends for the years 1955 through 2004 are shown by gender in the graphs below, reproduced from a book published by Joseph Fried. These graphs depict results obtained by Fried from the National Election Studies (NES) database Republican are also more successful Business community. The GOP is usually seen as the traditionally pro-business party and it garners major support from a wide variety of industries from the financial sector to small businesses. Republicans are about 50 percent more likely to be self-employed, and are more likely to work in the area of management Income. Low-income voters tend to favor the Democratic Party while high-income voters tend to support the Republican Party. President George W. Bush won 41% of the poorest 20% of voters in 2004, 55% of the richest twenty percent, and 53% of those in between. In the 2006 House races, the voters with incomes over $50,000 were 49% Republican, while those under were 38% Military. Republicans hold a large majority in the armed services, with 57% of active military personnel and 66% of officers identified as Republican in 2003 link The interesting thing is there are far fewer Republican than Democrats. So the percentage of Republicans that as seccessful vs Democrats is also far greater.