“…In line with social movement literature, these studies focus on the direct effects of institutional elements of the political context on the amount of such activities. Country selection determines whether studies focus on general measures of democratic development (e.g., Anderson and Mendes, 2006;Dalton et al, 2010) or on specific aspects of the political opportunity structure faced by protesters in democracies (e.g., Dubrow et al, 2008;Fatke and Freitag, 2013;Morales, 2009;Spina, 2014;van der Meer et al, 2009;Vráblíková, 2014). In general, studies report stronger positive effects on the level of ERP when it comes to democratic development as compared to the variation found among democracies.…”