Abstract
In this paper, I examine the effects of vote-by-mail on voter behavior and voter knowledge. I argue that vote-by-mail electoral systems result in a more informed electorate, because voters have additional time with their ballot and access to resources to conduct research about races on the ballot that they know nothing about. I present the results of two empirical studies that support this prediction. First, I find that all-mail elections in Utah cause a 6.368 percentage point decrease in straight ticket voting. This is consistent with the logic that voters spend more time with their ballots when voting by mail relative to when they are voting at a polling place. Second, I estimate the effects of vote-by-mail on voter knowledge using an original repeated cross-sectional survey that was fielded during the 2018 general election in California. The research design exploits the implementation of the California Voters Choice Act (VCA), which resulted in five counties in the state switching to an election system in which all voters in the counties are sent a mail-in ballot. I find that the VCA causes an increase in voter knowledge and an increase in time that voters spend gathering information about the election. However, the reform does not affect the prevalence of political discussion or levels of knowledge about the party identification and ideology of candidates.