A public-procurement award of a contract has to deal with the timing and specification of the physical works. PPPs, on the other hand, also have to deal with revenue, O&M and termination issues. The public sector may also be at a disadvantage during contract negotiations. An individual Promoter will only rarely have to negotiate a PPP contract, while the Provider is negotiating regularly. There may also be an issue of asymmetry in the quality of advice available to the public and private sector.