Ticket splitting as electoral insurance: The Mexico 2000 elections

This article provides a novel explanation for ticket splitting rooted in the literature on voter uncertainty. The argument is that in contexts marked by asymmetrical competition, such as single party autocracies, ticket splitting can provide voters with a kind of electoral insurance policy. By simultaneously voting for challengers in one race and incumbents in another, voters act to minimize the risks associated with electing a relatively unknown opposition party. Drawing on survey data for one of Latin America's most important elections, the 2000 Mexican presidential race, I evaluate empirically whether voters behave in ways consistent with the logic of ticket splitting as electoral insurance.