Separating the creation of policies from their implementation and supervision would help prevent a concentration of power within the Communist Party, economist Mr Cao said. 'The party should separate the three functions . . . No individual should hold more than one post,' he said. 'According to the party constitution, the Disciplinary Committee and the Party Committee are supposed to be separate from each other, and of equal rank. But in practice, the Disciplinary Committee is under the Party Committee, which greatly reduces the efficiency of its work and is one reason why it is so hard to punish long-term corruption among officials.' Mr Cao proposed splitting the three functions and holding national meetings with about 300 representatives every two months, enabling them to monitor what party members were doing.