What are the most effective collective actions that social protest movements can or should undertake in the context of deep societal conflict and polarization? CASBS fellows Eran Halperin (2022-23) & Robb Willer (2012-13, 2020-21) compare their cross-national research findings and explore Halperin's real-time applied work with the dramatic, ongoing protests in Israel.ERAN HALPERIN links:Psychology of Intergroup Conflict and Reconciliation Lab (PCIL)Halperin on Google ScholaraChord: Social Psychology for Social ChangeROBB WILLER links:Willer's Stanford faculty pageWiller's personal web pagePolarization and Social Change LabWiller on Google ScholarArticle in JPSP, "The Activist's Dilemma" (2020)Center for Advanced Study in the Behavioral Sciences (CASBS) at Stanford UniversityCASBS:website|Twitter|YouTube|LinkedIn|podcast|latest newsletter|signup|outreach​Follow the CASBS webcast series,Social Science for a World in Crisis