Elections are at the heart of our democracy. Understanding citizens' decisions to vote or to abstain in elections is crucial, especially when turnout in so many established democracies is declining. In The Motivation to Vote, Andre Blais and Jean-Francois Daoust provide an original and elegant model for why people vote. They argue that the decision to vote or abstain hinges on answers to four key questions: Do I like politics? Do I have a duty to vote? Do I care about the outcome? Is it easy to vote? These considerations make sense of people's turnout decision most of the time, in a wide...