Expert interviews: protest outcomes & success factors

Why this matters

Despite the central role of protest in social change, there is surprisingly little consensus on when and why it works. Most research focuses on short-term legislative outcomes and Western democracies, leaving major gaps around long-term impacts, corporate targets, and applicability to other contexts. This report draws on expert knowledge to map areas of agreement and uncertainty.

What we found

Experts broadly agreed that protests can have significant positive effects on voting behaviour, public opinion, and legislator behaviour - but that context is decisive. Large protests involving people beyond the ‘usual suspects’ are taken more seriously by politicians as a signal of public opinion. Violent protest is generally seen as counterproductive, while disruptive nonviolent protest can be effective depending on the level of existing public support. External conditions - political context, media landscape, trigger events - were judged to account for slightly more of a movement’s success or failure than internal factors, though the ability to capitalise on those conditions matters greatly. The six most frequently cited success factors were: organisational governance and systems, the size of the protest, an experienced core team, readiness to act on trigger events, tactical disruption, and elite allies.

What it means for the movement

Movements are more likely to succeed when they invest in scalable systems and governance structures, build experienced core teams capable of handling internal conflict, and develop rapid-response capacity to make use of trigger events. Polarisation is not inherently harmful - on issues where public sympathy exists, disruptive tactics can increase salience and political pressure. Funders and organisers should be cautious about drawing strong conclusions from short-term research, and should note that much existing evidence comes from the US and may not generalise straightforwardly to other contexts.