Dynamic interactions in contentious episodes: social movements, industry and political parties in the contention over Heathrow’s Third Runway Eugene Nulman Centre for the Study of Social and Political Movements, School of Social Policy, Sociology and Social Research, University of Kent, Canterbury, UK SSPSSR, Cornwallis North East, University of Kent, Canterbury, Kent CT2 7NF 01227 823072
[email protected] 1 Dynamic interactions in contentious episodes: social movements, industry and political parties in the contention over Heathrow’s Third Runway While the literature on dynamics of contention has proliferated, its focus on movement onset, mobilization and outcomes could be used to understand interactions between actors during episodes of contention. While McAdam et al. (2001) acknowledge the importance of these interactions, more insight is needed into what shapes these relations and how they change over time. Here I attempt to test the dynamic model as it pertains to interactions, utilizing the case of the proposed third runway at Heathrow airport, which included a variety of environmental campaigners, powerful corporations, political actors and parties, and a countermovement. I break down the campaign into phases that represent the predominant interactions between actors, and seek to understand the process of phase changes using a process-tracing approach. The findings highlight the importance of cognitive mechanisms over objective factors. However, explanations offered by more static models retain some explanatory power and therefore should not be discarded altogether. Keywords: aviation policy; climate change; social movements; Heathrow; policy change; dynamics of contention; interactions Introduction The environmental movement, like many social and political movements, seeks to change the behaviour of an array of actors ranging from state and business institutions to individuals.