Changes in the dimensions of political competition in Europe and their impact on citizens' engagement via Facebook

This article focuses on a little-explored area of research, seeking to explain how political changes influence the participation of citizens in the social networks of local governments. In the context of the recent upsurge of anti-system movements and political parties in the European Union, we analyse a new set of data on participation via local governments' Facebook pages during a turbulent period in European politics. The results obtained show that when a local government is affected by changes in political competition there is a greater degree of citizens' engagement through social networks. Our analytical framework shows that this increased engagement is directly associated with the vulnerability of political parties, especially when the governing party loses its absolute majority and is constrained or prevented from carrying out political initiatives.