Party Organization & Structure

From Mass Parties to Cartel Parties

Political scientists have identified several organizational models of parties. The cadre party (typical of 19th-century elite parties) has few members and is run by a small group of notables. The mass party (developed by socialist and labor movements) has large memberships, collects dues, and is organized through local branches, regional federations, and national congresses. The catch-all party (identified by Otto Kirchheimer in the 1960s) seeks the broadest possible voter base by moderating ideology and emphasizing leadership.

More recently, Richard Katz and Peter Mair described the 'cartel party,' which relies heavily on state funding and professional staff rather than member contributions and volunteer labor. Cartel parties, they argue, have become semi-state agencies, colluding with other established parties to protect their access to resources while shutting out challengers.

Digital-Age Party Organization

The 21st century has introduced new organizational forms. Platform parties like Italy's Five Star Movement use online voting and deliberation platforms to make decisions, replacing branch meetings with digital participation. Movement parties like Spain's Podemos blur the line between social movement and political party, using horizontal organization and protest tactics alongside electoral competition.

The personalist party is organized entirely around a single leader's brand: Macron's En Marche, Berlusconi's Forza Italia, and many parties in developing democracies are essentially vehicles for one person's political ambitions. These parties can mobilize quickly but often struggle with succession because the organization is indistinguishable from the leader.

Four Models, Four Eras

Katz and Mair's central point is that each shift moved parties further from society and closer to the state, culminating in the cartel party that survives on public funding rather than grassroots dues. The German SPD is a useful benchmark: it pioneered the dues-funded mass party in the late 19th century, then like most European majors came to depend heavily on state party financing by the late 20th century.