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The Impact of Vote-By-Mail Policy on Turnout and Vote Share in the 2020 Election

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... The option for postal voting is believed to increase turnout (Hodler et al., 2015;Luechinger et al., 2007), but a heterogeneous effect of postal voting regarding the absence of social pressure may also reduce incentives to go to the polls (Funk, 2010). Simplified and less costly postal voting by providing voters prepaid postage for their postal voting documents (Schelker & Schneiter, 2017) or by generally sending postal voting-related documents to all registered voters (Amlani & Collitt, 2022;Gerber et al., 2013) has a positive effect on turnout. Factors that are negatively related to turnout by increasing voting costs are the relocation of polling stations (Brady & McNulty, 2011) or knowledge of exit poll information (Morton et al., 2015). 2 The effect of voting in the aftermath of disasters and crises on turnout is ambiguous (Bechtel & Hainmueller, 2011;Bodet et al., 2016;Fair et al., 2017;Lasala-Blanco et al., 2017;Rudolph & Kuhn, 2017;Sinclair et al., 2011). ...
... The local prevalence of contagious diseases has been shown to rather decrease turnout (Godefroy & Henry, 2016;Noury et al., 2021;Picchio & Santolini, 2022;Urbatsch, 2017) but Blesse et al. (2020) find a slightly higher turnout in counties that reported infections with Covid-19 in the first round of the Bavarian local elections in 2020. Consistent with Amlani and Collitt (2022) for the United States, we show with a difference-in-differences strategy that turnout increased substantially due to lower direct voting costs induced by a state of emergency together with the introduction of exclusive and facilitated postal voting. ...
... Studies frequently employ rainfall (bad weather) or institutional changes that affect voting costs as instruments to estimate the impact of higher turnout on party vote shares. Some evidence suggests that left-wing parties profit from high turnout (Arnold & Freier, 2016;Finseraas & Vernby, 2014;Fowler, 2013Fowler, , 2015Hansford & Gomez, 2010), other research indicates that smaller parties profit (Artés, 2014;Ferwerda, 2014), and some do not find any specific effect of higher turnout on parties' vote shares (Amlani & Collitt, 2022;Knack, 1994). Recent evidence suggests that rainfall may not only increase voting costs but also may change the voting behavior of those who cast a ballot, affecting voters through their emotions which raises questions regarding the exogeneity assumption when employing rainfall as an instrument (Meier et al., 2019). ...
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We analyze the effect of electoral turnout on incum-bency advantages by exploring mayoral elections in the German state of Bavaria. Mayors are elected by majority rule in two-round (runoff) elections. Between the first and second ballot of the mayoral election in March 2020, the state government announced an official state of emergency. In the second ballot, voting in person was prohibited and only postal voting was possible. To construct an instrument for electoral turnout, we use a difference-in-differences strategy by contrasting turnout in the first and second ballot in 2020 with the first and second ballots from previous elections. We use this instrument to analyze the causal effect of turnout on incumbent vote shares. A 10-percentage point increase in turnout leads to a statistically robust 3.4 percentage point higher vote share for incumbent mayors highlighting the relevance of turnout-related incumbency advantages.
... The use of mail-in ballots has increased in recent years, particularly during the COVID-19 pandemic as a means for voters to reduce their risk of exposure to the virus, with a large share of the US electorate (43 percent) casting ballots by mail in 2020 (United States Census Bureau 2021). While the mail-in ballot is meant to increase the convenience and accessibility of voting, evidence suggests that voting by mail has only a modest effect, if any, on increasing electoral participation in recent elections (Berinsky, Burns, and Traugott 2001;Southwell 2009;Monroe and Sylvester 2011;Gronke and Miller 2012;Barber and Holbein 2020;Amlani and Collitt 2022). Several studies suggest that voting by mail mainly changes "how people vote" (or voter retention) rather than "who votes" (or voter recruitment), including during the 2020 election amid the COVID-19 pandemic (Monroe and Sylvester 2011;Thompson et al. 2020;Yoder et al. 2021). ...
... Several studies suggest that voting by mail mainly changes "how people vote" (or voter retention) rather than "who votes" (or voter recruitment), including during the 2020 election amid the COVID-19 pandemic (Monroe and Sylvester 2011;Thompson et al. 2020;Yoder et al. 2021). Notably, numerous studies have failed to find evidence that voting by mail confers any specific partisan advantage (Barber and Holbein 2020;Amlani and Collitt 2022). ...
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Do Donald Trump’s attacks on voting by mail influence how some Canadians view mail-in ballots? The Trump effect on views and behaviors surrounding voting by mail has been well documented in the United States. North of the border, more Canadians than ever voted by mail in the last general election. In this study, we consider how right-wing populism is associated with trust in voting by mail among Canadians. Specifically, we seek to test two main hypotheses. First, we consider whether Canadians holding populist views—and, in particular, those holding right-wing populist views (would-be Trump supporters)—are less trusting of voting by mail. Second, we consider whether political media exposure amplifies this association. We analyze data from both the 2021 Canadian Election Study and Democracy Checkup Survey. We find that those who hold populist views clearly have less trust in voting by mail. This is especially true among right-leaning individuals. Furthermore, as in the United States, this effect is moderated by one’s level of political media exposure, with higher levels of political media exposure amplifying the effect of populist views on trust in voting by mail. Our findings, therefore, suggest that the politicization of mail-in voting by President Trump has important implications for the legitimacy of the electoral system not only in the United States, but also in Canada and potentially in other parts of the world.
... While there is general scholarly agreement that all-mail voting increases turnout, there is little support that other mail ballot policies affect turnout. For example, Amlani and Collitt (2022) find null county-level turnout effects in states that shifted their mail policies (from 2016 to 2020) from ''excuseneeded to no-excuse-needed or from no-excuseneeded to sending mail-in ballot applications'' (Amlani and Collitt 2022, 12). And McGhee, Paluch and Romero (2022) do not find mail balloting increased turnout outside of the vote-by-mail states. ...
... A simple LOESS line helps us illustrate that states' turnout rates averaged about 60% where the fewest percentage of voters cast mail ballots, with a ten percentage point rise to about 70% in states in which roughly 40% of voters cast mail ballots. This effect on face value appears much larger than a maximal 2.9 percentage point effect of expanded no-excuse absentee voting (Amlani and Collitt 2022). We believe mail ballot usage helps us visualize the cumulative effect of the many nuances of states' mail ballot policies that may affect the percentage of the electorate casting mail ballots. ...
... Despite partisan disagreement, most research shows that neither party gains much advantage when a new voting method is introduced (Stein 1998; Karp and Banducci 2000;Berinsky et al. 2001;Hassell 2017;Southwell and Burchett 2000;Barber and Holbein 2020;Thompson et al. 2020;Amlani and Collitt 2022). For example, there was virtually no difference in the rates by which Democrats and Republicans used mail ballots nationwide in 2016 even though the universal VBM states lean more Democratic (Stewart 2020a). ...
... The smallest increase was in states that neither had nor introduced VBM or no-excuse/COVID-excuse absentee voting. Amlani and Collitt (2022) report only states that switched from no-excuse absentee ballots to universal VBM elections experienced significantly higher turnout over 2016, and changes in voting policies did not appear to advantage one party; however, their analysis does not consider the effects of COVID. Parzuchowski et al. (2021) show COVID deaths and cases had a positive impact on turnout among Democrats. ...
... We demonstrate the use of our metrics in an empirical example that estimates the effect of a vote-by-mail policy in various outcomes (Amlani and Collitt, 2022). This work includes an analysis for the effect of a US county's vote-by-mail (VBM) policy on the Republican presidential vote share (dependent variable Y ) in the 2020 election. ...
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Despite relatively favorable citizen attitudes, voter turnout in American national elections is far below the average of 80% of the eligible electorate that votes in other industrialized democracies. The American institutional setting—particularly the party system and the registration laws—severely inhibits voter turnout, and probably also accounts for the unusual degree to which education and other socioeconomic resources are directly linked to voting participation in the United States. Using a combination of aggregate and comparative survey data, the present analysis suggests that in comparative perspective, turnout in the United States is advantaged about 5% by political attitudes, but disadvantaged 13% by the party system and institutional factors, and up to 14% by the registration laws. The experience of other democracies suggests that encouraging voter participation would contribute to channeling discontent through the electoral process. Even a significantly expanded American electorate would be more interested and involved in political activity than are present voters in most other democracies.
Article
State governments have experimented with a variety of election laws to make voting more convenient and increase turnout. But the impact of these reforms vary, often in surprising ways that cast insights into the mechanisms by which states can encourage or reduce turnout. Our theory focuses on mobilization and distinguishes between the direct and indirect effects of election laws. We conduct both aggregate and individual level statistical analyses of voter turnout in the 2008 presidential election. The results show that reforms such as election day registration have a consistently positive effect on turnout. By contrast, the most popular reform – early voting – is actually associated with lower turnout. We propose that early voting has created negative unanticipated consequences, reducing the civic significance of elections for individuals, and altering the incentives for political campaigns to invest in mobilization.
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This county-level study examines factors associated with the rate of voided presidential ballots in the 1996 elections. Evidence indicates that voided ballots are significantly more prevalent in counties with higher percentages of African Americans and Hispanics. The relationship between voided ballots and African Americans disappears, however, in counties using voting equipment that can be programmed to eliminate overvoting. The rate of voided ballots is lower in larger counties and in counties with a higher percentage of high school graduates. The rate of voided ballots declines as the number of presidential candidates on the ballot increases, but only up to a point, and then rises with further increases. Lever machines generate the lowest rates of voided ballots among types of voting equipment, with punch card systems generating the highest rates.
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Most papers that employ Differences-in-Differences estimation (DD) use many years of data and focus on serially correlated outcomes but ignore that the resulting standard errors are inconsistent. To illustrate the severity of this issue, we randomly generate placebo laws in state-level data on female wages from the Current Population Survey. For each law, we use OLS to compute the DD estimate of its "effect" as well as the standard error of this estimate. These conventional DD standard errors severely understate the standard deviation of the estimators: we find an "effect" significant at the 5 percent level for up to 45 percent of the placebo interventions. We use Monte Carlo simulations to investigate how well existing methods help solve this problem. Econometric corrections that place a specific parametric form on the time-series process do not perform well. Bootstrap (taking into account the autocorrelation of the data) works well when the number of states is large enough. Two corrections based on asymptotic approximation of the variance-covariance matrix work well for moderate numbers of states and one correction that collapses the time series information into a "pre"-and "post"-period and explicitly takes into account the effective sample size works well even for small numbers of states.
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Would holding elections by mail increase voter turnout? Many electoral reform advocates predict that mail ballot elections will boost participation, basing their prediction on the high turnout rate among absentee voters and on the rise in voter turnout after Oregon switched to voting by mail. However, selection problems inherent to studies of absentee voters and Oregon give us important reasons to doubt whether their results would extend to more general applications of voting by mail. In this paper, we isolate the effects of voting in mail ballot elections by taking advantage of a natural experiment in which voters are assigned in a nearly random process to cast their ballots by mail. We use matching methods to ensure that, in our analysis, the demographic characteristics of these voters mirror those of polling-place voters who take part in the same elections. Drawing on data from a large sample of California counties in two general elections, we find that voting by mail does not deliver on the promise of greater participation in general elections. In fact, voters who are assigned to vote by mail turn out at lower rates than those who are sent to a polling place. Analysis of a sample of local special elections, by contrast, indicates that voting by mail can increase turnout in these otherwise low-participation contests.
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Election administrators and public officials often consider changes in electoral laws, hoping that these changes will increase voter turnout and make the electorate more reflective of the voting-age population. The most recent of these innovations is voting-by-mail (VBM), a procedure by which ballots are sent to an address for every registered voter. Over the last 2 decades, VBM has spread across the United States, unaccompanied by much empirical evaluation of its impact on either voter turnout or the stratification of the electorate. In this study, we fill this gap in our knowledge by assessing the impact of VBM in one state, Oregon. We carry out this assessment at the individual level, using data over a range of elections. We argue that VBM does increase voter turnout in the long run, primarily by making it easier for current voters to continue to participate, rather than by mobilizing nonvoters into the electorate. These effects, however, are not uniform across all groups in the electorate. Although VBM in Oregon does not exert any influence on the partisan composition of the electorate, VBM increases, rather than diminishes, the resource stratification of the electorate. Contrary to the expectations of many reformers, VBM advantages the resource-rich by keeping them in the electorate, and VBM does little to change the behavior of the resource-poor. In short, VBM increases turnout, but it does so without making the electorate more descriptively representative of the voting-age population.
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How Greater Vote-by-Mail Influences California Voter Turnout
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How To Vote In The 2020 Election
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Map: Mail-In Voting Rules by State-and the Deadlines You Need
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