“…Early rational choice work argued that close elections increase the chance that a single voter might become "pivotal" in determining the outcome, and thus increase voter turnout (Downs, 1957;Tullock, 1968;Riker and Ordeshook, 1968). However, after the realization that these pivotal voter theories predict vanishingly small turnout rates in large electorates (Palfrey and Rosenthal, 1985), several scholars-beginning with Morton (1987Morton ( , 1991 and Uhlaner (1989)-attempted to resolve the "paradox of voting" by focusing instead on the mobilizational efforts of politicians and interest groups (e.g., Cox and Munger, 1989;Aldrich, 1993;Shachar and Nalebuff, 1999). The basic argument is that elite actors in close races might rationally invest in mobilizing voters, while those voters might rationally respond to such mobilization by turning out to vote.…”