This paper investigates a procurement relationship between a welfare-oriented government and a private supplier. The agents face several versions of the trading good which differ in quality and production costs, and the differences between those items are undescribable ex ante. In presence of...

In public procurement a temporal separation of award and actual contracting can frequently be observed. In this paper we give an explanation for this institutional setting. For incomplete procurement contracts we show that such a separation may increase efficiency. We show that efficiency can be...