One votes from self-interest or from a sense of duty. Voting from self-interest requires there to be some chance, however small, that one's vote swings the outcome of an election from one political party to another. This paper is a discussion of three models of what that chance might be: the...

People vote from self-interest or from a sense of duty. Voting from self-interest requires there to be some chance, however small, that one's vote swings the outcome of the election from the political party one opposes to the political party one favours. This paper is a discussion of three...

A duty to vote may be many things. It may be no more than an obligation to cast one's ballot as self-interestedly or as altruistically as one pleases. It may a requirement to vote for the political party most likely to yield the highest social welfare. It may be a requirement to choose between...

This paper is about a model of uncertainty in voting that allows for a schedule of people`s preferences for one party over another, that gives rise to a chance of casting a pivotal vote which is small but not, as often supposed, infinitesimal, that is not inconsistent with evidence about the...