Parties link the society with the state . It is their task to recruit members, integrate and train them for taking over leadership positions at different levels . Since 1990 the parties in (unified) Germany lose members . Does this prevent them from fulfilling their functions for the parliamentary democracy? The analysis detects differences between the Länder: Indeed, the capability of parties to recruit members increases with the number of officeholders in local and regional councils and state parliaments . Big cities and the so-called city-states (Berlin, Hamburg and Bremen) reduce the chances for political participation . Where the organisational structure of public administration was reformed the number of local and regional councillors sank and - with some delay - also the number of party members . Are the remarkable differences in the capability of the parties to recruit members a reflection of their internal organisation? Do the structures that are formally laid down in the party statutes influence how opinions are formed and majorities are found? How does the linkage between officeholders and their party - which is necessary for political leadership - work? Do the parties communicate to the people why it pays to get engaged? The differences found between the parties indicate how the capacity for recruiting members can be improved .