Social identity formation during the emergence of the occupy movement

The Occupy movement made a series of local ‘sit-ins’ in cities across the world in response to financial and political injustices. Prior to the movement's emergence, the Internet provided a transnational forum for people across the world to discuss their opinions and coalesce about the financial and political contexts. Here, we analyse 5343 posts on the ‘#OccupyWallStreet’ Facebook event page to identify linguistic markers of shared social identity formation. Results suggest that discussants formed a shared identity if they agreed on both the desired change (the injunctive norm, ‘revoke corporate personhood’) and the predefined action (Occupy Wall Street). Lines of consensus and dissensus on injunctive norms and actions delineated the development of both affirmational in-group and negational out-group identities. We conclude that online discussion can create both in-groups and out-groups through (in)validating ideas about social reformation and delineating shared psychological spaces.