Dr. Sebastian Valenzuela, Associate Professor of Communication at the Pontifical Catholic University of Chile, guests to discuss two studies on how social media impact political participation.

The first study demonstrates how both Facebook and Twitter contribute to protest participation, but they do so through different pathways that relate to strong and weak tie social networks.

The second study is a meta-analysis of existing research, and it explores whether exposure to cross-cutting information affects political participation.

Both studies are published in Political Communication, and you can read them here:

1) Ties, Likes, and Tweets: Using Strong and Weak Ties to Explain Differences in Protest Participation Across Facebook and Twitter Use

2) A Meta-Analysis of the Effects of Cross-Cutting Exposure on Political Participation

Protest, Participation, and Cross-Cutting Exposure on Social Media, with Dr. Sebastian Valenzuela