“…In addition to the social cleavage framework's profound influence on research on party systems, its core object of inquiry (e.g. Hooghe and Marks, 2018;Aydogan, 2020;Selçuk and Hekimci, 2020), it also informs contemporary research on topics ranging from social polarization along the lines of political parties (Iyengar et al, 2019) to right-wing populist parties electoral success in some regions but not others (De Jonge, 2020), European integration (Börzel and Risse, 2020), and policies aimed at promoting economic growth in developed democracies (Hall, 2020). 37.…”