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Global voter turnout has been in decline since the 1960s – we wanted to find out why

Any democratic nation in the world holding a legislative or presidential election in the late 1960s could expect around 77% of its citizens to turn up to vote. These days, they can expect more like 67% – a decline that is both problematic and puzzling.

Research shows that low turnout is bad for democracy. It usually means that socioeconomically underprivileged citizens vote less and, as a result, public policies benefit the rich. Politicians feel less under public scrutiny and turn a deaf ear to the needs of the wider public. Instead of formulating general public policies serving society at large, governments can more easily target benefits to their core supporters.

And the decline has occurred against a backdrop that might be more likely to imply an increase in election participation. Educational attainment has increased since the 1960s, for example, and election results have become closer – which would be thought to mobilise electorates.

Evolution of voter turnout in national elections 1945-2017

A graph showing that voter turnout has declined since the 1960s.
The figure draws on the first rounds of legislative (lower house) and presidential elections. Voter turnout is measured as a percentage of registered voters. Twenty continuous cases are countries that held democratic elections continuously from the 1940s through the 2010s. Author provided (no reuse)

Scholars and pundits have offered several hypotheses for the decline. Some think that political dissatisfaction has increased and keeps people away. Others cite economic globalisation, suggesting that if national governments hold less power, the stakes of their national elections are lower and people won’t see the point in taking part. We tested all of these hypotheses in the most extensive cross-national study of voter turnout to date, drawing on 1,421 national elections, and 314,071 individual observations from high-quality post-electoral surveys.

Generational shift

Our statistical analysis did not find support for many of the popular explanations. Instead, we identified two main causes. The first is a generational change resulting from economic development. People born into more affluent societies develop values that are less conducive to participation. Once countries reach a certain level of economic wealth, new generations become less deferential to authorities and less likely to conceptualise voting as a civic duty. They go to the polls less often than their older counterparts, who were socialised in earlier stages of economic development. The mechanical process of generational replacement, whereby new generations’ share in the electorate grows as older generations pass away, accounts for 56% of the voter decline.

The other main cause, responsible for 21% of the decline, is the rise in the number of elective institutions. When elections are more frequent, voter fatigue sets in and people’s interest in taking part slides. In Europe, the number of elective institutions increased by 34% since the 1960s. This was driven by European integration, state decentralisation, the frequent use of direct democracy, and institutional reforms such as the introduction of directly elected presidents. If voters are asked to vote nearly twice a year, like in France, some of them will get fed up and not bother.

Further to fall?

The generational nature of the problem suggests that turnout may continue to drop. But this isn’t inevitable. While new generations vote on average less than older generations, they do mobilise in particularly polarised contexts where a lot seems at stake. For example, the most recent presidential election in the United States in November 2020, in which the controversial incumbent Donald Trump sought re-election, yielded the highest voter turnout in the US for 120 years.

A line of people waiting to enter a theatre-turned-polling-station with a sign reading 'vote early, vote here'.
The high levels of participation in the 2020 US election remind us that people turn out when they feel a lot is at stake. EPA

The rising salience of cultural and environmental issues, which new generations care deeply about, could likewise offset some of the generational declines in turnout.

Public authorities can also help by reducing the number of times citizens are called to the voting booth. This can be achieved without reducing citizens’ rights by reorganising election calendars and combining different election types on the same day.

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