Some initial decisions need to be made regarding the procurement and the bid evaluation process. The choice of procurement method will depend on the government's budget, capacity, desire to encourage innovation, need for high-level inputs, vulnerability to corruption, and objectives of the PPP project. Three main options, distinguished by the level of competition they create, are available: (i) unsolicited proposals or direct negotiations ("sole sourcing"), (ii) competitive negotiations, and (iii) competitive bidding.