A look at what research from across 27 countries has to say about how social media shapes political engagement and polarization.
We often hear that social media is either “saving” or “undermining” democracy. In truth, the relationship is more complicated. That complexity is what makes it worth examining more closely.
More engagement, less trust
A 2024 study by Chan and Yi, “Social Media Use and Political Engagement in Polarized Times,” offers a comprehensive analysis of this issue. The researchers examined how social media use affects political participation and democratic satisfaction across 27 developed democracies. Their findings challenge the idea that social media is simply “good” or “bad” for democracy.
countries studied
political participation linked to social media use
satisfaction with democracy among heavy users
More engagement, less trust
The study highlights a clear tradeoff. Social media use is associated with higher levels of political participation, including increased voter turnout. At the same time, social media use also correlates with lower satisfaction with democratic systems as well as weaker perceptions of democratic quality.
In other words, people are more engaged, but also more critical and less trusting of the system they are participating in.
"The same emotional intensity that gets people engaged can also undermine trust and social cohesion." — Chan & Yi (2024)
It’s not about policy disagreements—it’s about emotional polarization
A key contribution of this research is its distinction between two types of polarization:
- Issue polarization: disagreement over policies (ex: healthcare or climate change)
- Affective polarization: emotional hostility toward opposing political groups
Chan and Yi find that affective polarization plays a much larger role in shaping democratic outcomes than political disagreement alone. In countries with high levels of affective polarization, social media both increases democratic participation and decreases satisfaction with democracy.
In contrast, in countries with lower levels of affective polarization, social media tends to have a more positive effect. This encourages engagement without significantly undermining trust.
Why this matters
The research reflects a broader pattern across other research literature: the same forces that increase political engagement can also weaken trust, social cohesion, and confidence in certain institutions. Social media use does not have an all-encompassing effect; its impacts depend heavily on the political environment in which it operates.
For college students, this is especially relevant. As a generation that has grown up with social media platforms, we are increasingly shaping and are shaped by political conversations online. Understanding how social media influences not just what we think, but how we feel about politics, is an important step toward engaging more thoughtfully and responsibly.
Ultimately, the issue is not only misinformation or echo chambers. It is also the emotional intensity of political discourse, and the role we play in reinforcing or reducing it.
POLARIZATION
What global research tells us about social media & democracy
countries studied on social media & democracy
Social media use is linked to higher political participation & voter turnout
But also linked to lower satisfaction with democracy
Of polarization — issue-based vs. emotional (affective)
Affective polarization has a stronger impact on democracy than policy disagreements
Social media's effects on democracy aren't universal — context determines the outcome
