Research

#99: Information Gerrymandering on Social Networks, with Dr. Alexander Stewart

January 27, 2020 Academics


Dr. Alexander Stewart, Assistant Professor of Biology at the University of Houston, guests to discuss his research on “information gerrymandering,” recently published in Nature. The study uses a voter game, mathematical modelling, social media data, and legislative data to examine how information asymmetries in social networks impact collective decision-making processes. We break down the study, and the implications of its findings for democracy.


Read the full study, and check out the video showing information gerrymandering in action!

#60: Political Polarization, Social Media, and News Use in the United States, with Dr. Galen Stocking

October 14, 2018 Academics

Dr. Galen Stocking, Computational Social Scientist at Pew Research Center, discusses political polarization and how it relates to social media use. We take a deep dive into how Pew Research Center measures polarization empirically, how polarization has changed over time, and how widening partisan gaps relate to citizens’ traditional and social media habits. Dr. Stocking also discusses the role of computational methods in survey research, using one of his recent studies on media sources shared on Twitter during immigration debates as a case. We also talk about Reddit, which has a relatively low user base in the United States compared to other social media platforms. Yet, Dr. Stocking’s research has uncovered that Reddit users are highly active in consuming news on the site.

Pew Research Center sources cited in the episode:

Graphic Illustration of Political Polarization 1994-2017

Political Polarization and Media Habits (2014)

Sources Shared on Twitter: A Case Study of Immigration (2018)

News Use across Social Media (2018)

Dr. Stocking’s study on Reddit (2016)