Different structures of real cascades occurred on Twitter. Node sizes are proportional to the node degree and links represent the follower relationship between users.
Different structures of real cascades occurred on Twitter. Node sizes are proportional to the node degree and links represent the follower relationship between users. Image from Sandra González-Bailón's paper on Cascading Behaviour in Complex Soci-Technical Networks.

Consensus and Contagion in Society

Technology determines how we interact and communicate. By analyzing the digital mark we leave, researchers work to better understand how people interact and communicate, both online and in real life, and how social media affects public behavior and social interaction. This research initiative investigates the role social influence plays when it comes to our decisions and behavior, and how developments in digital networks have affected mass media, public opinion and popular culture. Faculty affiliates from The Warren Center combine strategies from network science, machine learning and computational sociology to determine how social motivations directly impact people’s choices. The Warren Center supports research in this area that focuses on political psychology and mass political behavior, health communication, social status formation and more.

People

Erol Akçay

Associate Professor of Biology

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Dolores Albarracín

Amy Gutmann Penn Integrates Knowledge University Professor

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Damon Centola

Elihu Katz Professor of Communication, Sociology, and Engineering

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Ezekiel Dixon-Román

Former Faculty Affiliate

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Emily Falk

Emily Falk

Professor of Communication, Psychology, Marketing, and OID; Vice Dean of the Annenberg School for Communication

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Sandra González-Bailón

Sandra González-Bailón

Carolyn Marvin Professor at the Annenberg School for Communication

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David Grazian

Professor of Sociology and Communication

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Chai Molina

Former Warren Center Postdoctoral Fellow

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Diana Mutz

Diana Mutz

Samuel A. Stouffer Professor of Political Science and Communication

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Aviv Nevo

Penn Integrates Knowledge University Professor; George A. Weiss and Lydia Bravo Weiss University Professor; Professor of Marketing; Professor of Economics

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Andrew Postlewaite

Harry P. Kamen Professor of Economics and Professor of Finance

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Daniel Singer

Associate Professor of Philosophy

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Duncan Watts

Duncan Watts

Penn Integrates Knowledge University Professor; Stevens University Professor of Computer and Information Science, Communication, and Operations, Information and Decisions

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