... In almost every society, party divisions correlate with social characteristics (Alford, 1963;LaPalombara and Weiner, 1966;Bartolini and Mair, 1990;Benson, 1961;Rokkan, 1970;Lipset, 1960Lipset, , 1970Lipset and Rokkan, 1967;Rose, 1974;Rose andUrwin, 1969, 1970;Converse, 1974;Lijphart, 1977Lijphart, , 1979Lijphart, , 1989Hays, 1975;Kelley, 1979;Maguire, 1983;Powell, 1984;Ware, 1996). The key to this connection between groups and parties is the influence of social characteristics and their associated structures on the perceptions, beliefs, and interests of citizens. ...