Abstract
In his Economic Theory of Democracy, Anthony Downs reached the conclusion that voting is usually an irrational act. Given that voting is costly in time and effort involved in getting to the polls and making a decision and given that the probability any one voter can affect the outcome diminishes very rapidly as the number of voters increases, it appears that a rational, utility-maximizing citizen will most probably abstain. Only if the citizen perceives a phenomenally large difference between (or among) the candidates or if the number of voters is small will he go to the polls.Empirically, however, we know that substantially more than half of all eligible voters go to the polls in American presidential elections where the probability of any one voter's affecting the outcome is smaller than in any other election. If Downs is correct, at least half of the American electorate is irrational. But of what validity is a rational choice theory which characterizes most individuals as irrational? For this reason, theorists have attempted to modify Downs's theory so as to allow it to better explain why some rational citizens vote while others abstain.

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