Petrocik, John R.; Patterson, Dennis P. - Institute for Social Science Research, UCLA - 1986
Historically, the emergence of mass politics has depended upon a minimum of social heterogeneity (LaPalombara and Weiner 1966; Dahl 1966; Lipset and Rokkan 1967). Religious, economic, ethnic, linguistic, and regional differences provided social cleavages along which organizations, especially political...