1. Annenberg School for Communication, University of Pennsylvania, Philadelphia, PA, USA.
2. Network Science Institute, Northeastern University, Boston, MA, USA.
3. Meta, Menlo Park, CA, USA.
4. Stanford Doerr School of Sustainability, Stanford University, Stanford, CA, USA.
5. Department of Economics, Stanford University, Stanford, CA, USA.
6. Department of Politics and School of Public and International Affairs, Princeton University, Princeton, NJ, USA.
7. Department of Political Science, Stanford University, Stanford, CA, USA.
8. School of Journalism and Mass Communication, University of Wisconsin–Madison, Madison, WI, USA.
9. Graduate School of Business, Stanford University, Stanford, CA, USA.
10. Department of Government, Dartmouth College, Hanover, NH, USA.
11. Department of Communication, Stanford University, Stanford, CA, USA.
12. Department of Government, William & Mary, Williamsburg, VA, USA.
13. Department of Political Science, Syracuse University, Syracuse, NY, USA.
14. School of Media and Public Affairs and Institute for Data, Democracy, and Politics, The George Washington University, Washington, DC, USA.
15. Department of Communication, University of California, Davis, Davis, CA, USA.
16. Amsterdam School of Communication Research, University of Amsterdam, Amsterdam, Netherlands.
17. Moody College of Communication, University of Texas at Austin, Austin, TX, USA.
18. Center for Media Engagement, University of Texas at Austin, Austin, TX, USA.
19. Wilf Family Department of Politics, New York University, New York, NY, USA.
20. Center for Social Media and Politics, New York University, New York, NY, USA.