Concept and scope
Tilly and Tarrow (2015) defined contentious politics as the overlap of contention (making claims), collective action (coordinating for shared interests) and politics (involving governments). The definition spans peaceful demonstrations to armed rebellion and does not sharply separate institutional from non-institutional politics. It grew out of an effort to integrate resource mobilization, political opportunity structure and framing research.
Mechanisms and processes
McAdam, Tarrow and Tilly (2001) proposed explaining contention not by grand structural causes but by combinations of small causal mechanisms recurring across cases. Mechanisms such as brokerage linking previously unconnected groups, diffusion spreading claims to new sites, elite defection and identity shift combine into processes such as revolution or democratization. McAdam (1983) showed that tactical innovation by the civil rights movement and authorities' responses together set the movement's pace.
Assessment and critiques
The approach brought separate literatures into dialogue and encouraged comparative work on strategies and outcomes, such as Stephan and Chenoweth's (2008) study of nonviolent resistance. Critics argue that its mechanisms are too numerous and vague to test and that it underplays emotion and culture. Meyer (2004) warned that the concept of political opportunity had become overstretched and called for greater specification.
FAQ
- What is contentious politics in simple terms?
- A perspective that studies protests, strikes and revolutions together as people jointly making claims against governments or other groups.
- How does it differ from social movement research?
- Social movements are one form of contentious politics; the broader field also covers revolution, civil war and democratization and seeks common mechanisms.
Sources reviewed: 2026-10-26
References
- McAdam, D., Tarrow, S., & Tilly, C. (2001). Dynamics of contention. Cambridge University Press. The landmark mechanisms-and-processes program.
- Tilly, C., & Tarrow, S. (2015). Contentious politics (2nd ed.). Oxford University Press. An accessible introduction.
- Tarrow, S. (2011). Power in movement: Social movements and contentious politics (3rd ed.). Cambridge University Press. Movements within contentious politics.
- McAdam, D. (1983). Tactical innovation and the pace of insurgency. American Sociological Review, 48(6), 735–754. Tactical interaction in civil rights.
- Meyer, D. S. (2004). Protest and political opportunities. Annual Review of Sociology, 30, 125–145. Review of political opportunities.
- Tilly, C. (1993). Contentious repertoires in Great Britain, 1758–1834. Social Science History, 17(2), 253–280. Historical repertoires in Britain.
- Stephan, M. J., & Chenoweth, E. (2008). Why civil resistance works: The strategic logic of nonviolent conflict. International Security, 33(1), 7–44. Nonviolent strategy.