This article examines agreements between a buyer and one of the suppliers which increase their joint surplus. The provisions of such agreements depend on the buyer's ability to design the rules of the final procurement auction. When the buyer does not have this ability, their joint surplus can...

We study competitive procurement administered by a corrupt agent who is willing to manipulate his evaluation of contract proposals in exchange for bribes. With complete information and no corruption, the efficient firm will win the contract for sure. If the agent is corrupt and has large...