Electoral Rules, Mobilization, and Turnout

This essay reviews models of strategic mobilization and turnout, focusing on two important questions about the effects of electoral rules. First, how does the disproportionality of the electoral system affect the variance and mean of mobilization and turnout? This question has been investigated at least since Gosnell (1930). In addition to reviewing the literature, I argue that extant models should pay more explicit attention to secondary mobilization (conducted by interest groups, activists, and ordinary voters). Second, how do electoral rules regulating the electoral calendar and vote fusion affect mobilizational spillovers and, hence, incentives to build mobilizational alliances? This question has attracted less attention from modelers but is well represented in the empirical literature.