Abstract
Research on post-communist party systems must deal with (1) the extent to which party systems crystallize around programmatic cleavages or are based on clientelistic or charismatic parties and (2) if programmatic competition is high, the content of the major divisions that are represented by the parties. The extent to which programmatic structuring takes place in post-communism depends on countries' democratic experience and the nature of their democratic institutions fostering more personalized or more depersonalized power relations. These institutions, in turn, are influenced by the pathways of transition from communism to democracy, the type of communist rule and earlier traditions of democratization and industrialization in the inter-war era. With regard to the content of cleavage divisions, the paper identifies several configurations of party systems. Determinants are derived from voters' economic interests, the varying salience of socio-cultural conflicts in post-communist countries and the relations among ethnic groups.