Focusing on natural experiments in Texas and Indiana, this research finds that 65-year-olds turned out at nearly the same rate as 64-year-olds, despite the fact that only 65-year-olds could vote absentee without an excuse in these states. Being just old enough to vote no-excuse absentee did not substantially increase Democratic turnout relative to Republican turnout.
Resources
Use our resource library to explore the latest research in the field of election science.
This analysis of the Florida general elections of 2016, 2018, and 2020 shows that voters inexperienced with mail voting disproportionately submit ballots that end up rejected due to (1) late arrival at elections offices or (2) signature defects on return envelopes. Inexperienced mail voters are up to three times more likely to have their ballots rejected compared to experienced mail voters.
All mail voting in Colorado had a positive overall turnout effect of approximately 8 percentage points—translating into an additional 900,000 ballots being cast between 2014 and 2018.
With Maine as a case study, the research shows that, in the past four general elections, over 10% of vote-by-mail ballots arrived at local elections offices either on Election Day itself or one day earlier. Moreover, of the vote-by-mail ballots most vulnerable to postal delivery disruptions, a greater share of them were cast by unaffiliated voters and Democrats than by Republicans.
Research finds adopting VBM increases turnout because it reduces the physical costs of voting for all voters and mitigates the information costs of voting conditional on the types of voters and salience of elections.
Using individual-level voter data from a 2020 Washington State election, the research shows that voters are more likely to use the nearest drop box to their residence relative to other drop boxes. In Washington’s 2020 August primary, 52% of drop box voters in our data used their nearest drop box.
Even before the 2020 election, this reseach finds that voter turnout across the states is consistently higher in every general election over the past decade in states with greater shares of overall ballots cast by mail. Drawing on turnout data from the 2012-2020 Current Population Survey (CPS) and the Cooperative Election Study (CES), authors find states with greater usage of mail voting experience higher overall voter turnout.
The research finds no evidence that voting by mail increases the risk of voter fraud overall. Between 2016 and 2019, RBM (VBM) states reported similar fraud rates to non-RBM (non-VBM) states. Moreover, it is estimated Washington would have reported 73 more cases of fraud between 2011 and 2019 had it not introduced its VBM law.
Examining two states that have conducted a staggered rollout of mandatory vote-by-mail (Washington and Utah), this research finds that mandatory vote-by-mail slightly increases voter turnout but has no effect on election outcomes at various levels of government.
In this research, voters were randomly assigned to either an in-person or absentee voting condition. Participants assigned to the absentee condition expressed lower levels of confidence that their votes would be counted correctly than those assigned to the in-person voting condition. Voters who had to ask for assistance during the experiment also reported lower levels of confidence.
This research finds that expanding universal vote-by-mail has not dramatically advantaged either party historically.
This study of California focuses on (1) vote-by-mail signature verification processes and (2) notice and remedy procedures for unverified signatures.