About the Authors

Philipp Singer

philipp.singer@gesis.org

Affiliations GESIS - Leibniz Institute for the Social Sciences, Cologne, Germany, University of Koblenz-Landau, Koblenz, Germany

Emilio Ferrara

Affiliation Information Sciences Institute, University of Southern California, Los Angeles, United States of America

Farshad Kooti

Affiliation Information Sciences Institute, University of Southern California, Los Angeles, United States of America

Markus Strohmaier

Affiliations GESIS - Leibniz Institute for the Social Sciences, Cologne, Germany, University of Koblenz-Landau, Koblenz, Germany

Kristina Lerman

Affiliation Information Sciences Institute, University of Southern California, Los Angeles, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PS EF FK KL MS. Performed the experiments: PS FK. Analyzed the data: PS EF FK KL. Contributed reagents/materials/analysis tools: PS FK. Wrote the paper: PS EF FK KL MS.