A mass democratic system encourages voter irresponsibility. Because the consequence of any single vote is negligible, individuals have an incentive to vote on some basis other than an understanding of current issues — which would require, among other things, the costly acquisition of a grasp of economics. Voters, then, are free to vote their biases. This voter mentality is known as rational ignorance. If there are no benefits, but only costs, associated with acquiring information, why acquire it? (This could not be more different than decision-making in the marketplace, where people expect to bear the costs and reap the rewards of their decisions. This does not mean that such market decision-making is flawless; but it does imply that people tend to learn from their errors.)Read it here.