The PDU is a union of labour unions, cooperatives and socialist parties lead by a popular assembly. Members of this assembly are chosen randomly from the local population. The Union's official representative, the Comrade-Leader, is charged with debate moderation and the signature of new laws (which he may not refuse). The Comrade-Leader is elected every 10 years via universal suffrage. Economically, the PDU is based on a reformed socialist system, in which the accumulation of wealth is allowed below a value voted by the assembly. In this system, patronage is replaced by a worker's congress