Citizens’ engagement with popularization and with populist actors on Facebook : A study on 52 leaders in 18 Western democracies

By considering the Facebook activity of 52 party leaders during national election campaigns held in 18 Western democracies that went to the polls between 2013 and 2017, we study users’ engagement with popularization and with populist leaders. Applying negative binomial hierarchical models on original data of party leaders’ Facebook pages, we find that elements of popularization in leaders’ posts are associated with an increase in users’ acknowledgement (number of likes), decreases in redistribution (number of shares), while they do not affect discursive interactions (number of comments). Our research also shows that, irrespective of their content, messages published by populist leaders are more capable of increasing both acknowledgement and redistribution, while they do not generate more comments than those published by non-populists. Finally, we find that when populist leaders adopt popularization as a communicative style, they do not achieve any extra gain vis-a-vis non-populist actors.