The odds posted at betting sites are better at predicting results of presidential elections or other political events, than opinion polls are. According to some economists regarding the last 2004 election, the fact that people’s money is involved is what makes the difference. Voters don’t have an incentive to give accurate information to pollsters, but instead, when they play with their own money, are more likely to make more informed choices. Vaughan Williams, director of the Betting Research Unit at Britain’s Nottingham Trent University said: “The more money involved, the more efficient and accurate the market”. The Betting research Unit studies how well efficient betting markets predict outcomes of events. It’s said that one online sportsbook recorded $20 million in bets on Election Day alone back in 2004, and the online betting market has grown exponentially since that, so we should expect today’s odds to be even more accurate than those at 2004.